*: convert stream-like files from nonseekable_open -> stream_open

Using scripts/coccinelle/api/stream_open.cocci added in 10dce8af34
("fs: stream_open - opener for stream-like files so that read and write
can run simultaneously without deadlock"), search and convert to
stream_open all in-kernel nonseekable_open users for which read and
write actually do not depend on ppos and where there is no other methods
in file_operations which assume @offset access.

I've verified each generated change manually - that it is correct to convert -
and each other nonseekable_open instance left - that it is either not correct
to convert there, or that it is not converted due to current stream_open.cocci
limitations. The script also does not convert files that should be valid to
convert, but that currently have .llseek = noop_llseek or generic_file_llseek
for unknown reason despite file being opened with nonseekable_open (e.g.
drivers/input/mousedev.c)

Among cases converted 14 were potentially vulnerable to read vs write deadlock
(see details in 10dce8af34):

	drivers/char/pcmcia/cm4000_cs.c:1685:7-23: ERROR: cm4000_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/gnss/core.c:45:1-17: ERROR: gnss_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/hid/uhid.c:635:1-17: ERROR: uhid_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/infiniband/core/user_mad.c:988:1-17: ERROR: umad_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/input/evdev.c:527:1-17: ERROR: evdev_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/input/misc/uinput.c:401:1-17: ERROR: uinput_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/isdn/capi/capi.c:963:8-24: ERROR: capi_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/leds/uleds.c:77:1-17: ERROR: uleds_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/media/rc/lirc_dev.c:198:1-17: ERROR: lirc_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/s390/char/fs3270.c:488:1-17: ERROR: fs3270_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/usb/misc/ldusb.c:310:1-17: ERROR: ld_usb_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	drivers/xen/evtchn.c:667:8-24: ERROR: evtchn_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	net/batman-adv/icmp_socket.c:80:1-17: ERROR: batadv_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
	net/rfkill/core.c:1146:8-24: ERROR: rfkill_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.

and the rest were just safe to convert to stream_open because their read and
write do not use ppos at all and corresponding file_operations do not
have methods that assume @offset file access(*):

	arch/powerpc/platforms/52xx/mpc52xx_gpt.c:631:8-24: WARNING: mpc52xx_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	arch/powerpc/platforms/cell/spufs/file.c:591:8-24: WARNING: spufs_ibox_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	arch/powerpc/platforms/cell/spufs/file.c:591:8-24: WARNING: spufs_ibox_stat_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	arch/powerpc/platforms/cell/spufs/file.c:591:8-24: WARNING: spufs_mbox_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	arch/powerpc/platforms/cell/spufs/file.c:591:8-24: WARNING: spufs_mbox_stat_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	arch/powerpc/platforms/cell/spufs/file.c:591:8-24: WARNING: spufs_wbox_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	arch/powerpc/platforms/cell/spufs/file.c:591:8-24: WARNING: spufs_wbox_stat_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	arch/um/drivers/harddog_kern.c:88:8-24: WARNING: harddog_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	arch/x86/kernel/cpu/microcode/core.c:430:33-49: WARNING: microcode_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/char/ds1620.c:215:8-24: WARNING: ds1620_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/char/dtlk.c:301:1-17: WARNING: dtlk_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/char/ipmi/ipmi_watchdog.c:840:9-25: WARNING: ipmi_wdog_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/char/pcmcia/scr24x_cs.c:95:8-24: WARNING: scr24x_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/char/tb0219.c:246:9-25: WARNING: tb0219_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/firewire/nosy.c:306:8-24: WARNING: nosy_ops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/hwmon/fschmd.c:840:8-24: WARNING: watchdog_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/hwmon/w83793.c:1344:8-24: WARNING: watchdog_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/infiniband/core/ucma.c:1747:8-24: WARNING: ucma_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/infiniband/core/ucm.c:1178:8-24: WARNING: ucm_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/infiniband/core/uverbs_main.c:1086:8-24: WARNING: uverbs_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/input/joydev.c:282:1-17: WARNING: joydev_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/pci/switch/switchtec.c:393:1-17: WARNING: switchtec_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/platform/chrome/cros_ec_debugfs.c:135:8-24: WARNING: cros_ec_console_log_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/rtc/rtc-ds1374.c:470:9-25: WARNING: ds1374_wdt_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/rtc/rtc-m41t80.c:805:9-25: WARNING: wdt_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/s390/char/tape_char.c:293:2-18: WARNING: tape_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/s390/char/zcore.c:194:8-24: WARNING: zcore_reipl_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/s390/crypto/zcrypt_api.c:528:8-24: WARNING: zcrypt_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/spi/spidev.c:594:1-17: WARNING: spidev_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/staging/pi433/pi433_if.c:974:1-17: WARNING: pi433_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/acquirewdt.c:203:8-24: WARNING: acq_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/advantechwdt.c:202:8-24: WARNING: advwdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/alim1535_wdt.c:252:8-24: WARNING: ali_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/alim7101_wdt.c:217:8-24: WARNING: wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/ar7_wdt.c:166:8-24: WARNING: ar7_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/at91rm9200_wdt.c:113:8-24: WARNING: at91wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/ath79_wdt.c:135:8-24: WARNING: ath79_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/bcm63xx_wdt.c:119:8-24: WARNING: bcm63xx_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/cpu5wdt.c:143:8-24: WARNING: cpu5wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/cpwd.c:397:8-24: WARNING: cpwd_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/eurotechwdt.c:319:8-24: WARNING: eurwdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/f71808e_wdt.c:528:8-24: WARNING: watchdog_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/gef_wdt.c:232:8-24: WARNING: gef_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/geodewdt.c:95:8-24: WARNING: geodewdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/ib700wdt.c:241:8-24: WARNING: ibwdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/ibmasr.c:326:8-24: WARNING: asr_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/indydog.c:80:8-24: WARNING: indydog_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/intel_scu_watchdog.c:307:8-24: WARNING: intel_scu_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/iop_wdt.c:104:8-24: WARNING: iop_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/it8712f_wdt.c:330:8-24: WARNING: it8712f_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/ixp4xx_wdt.c:68:8-24: WARNING: ixp4xx_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/ks8695_wdt.c:145:8-24: WARNING: ks8695wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/m54xx_wdt.c:88:8-24: WARNING: m54xx_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/machzwd.c:336:8-24: WARNING: zf_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/mixcomwd.c:153:8-24: WARNING: mixcomwd_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/mtx-1_wdt.c:121:8-24: WARNING: mtx1_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/mv64x60_wdt.c:136:8-24: WARNING: mv64x60_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/nuc900_wdt.c:134:8-24: WARNING: nuc900wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/nv_tco.c:164:8-24: WARNING: nv_tco_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/pc87413_wdt.c:289:8-24: WARNING: pc87413_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/pcwd.c:698:8-24: WARNING: pcwd_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/pcwd.c:737:8-24: WARNING: pcwd_temp_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/pcwd_pci.c:581:8-24: WARNING: pcipcwd_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/pcwd_pci.c:623:8-24: WARNING: pcipcwd_temp_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/pcwd_usb.c:488:8-24: WARNING: usb_pcwd_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/pcwd_usb.c:527:8-24: WARNING: usb_pcwd_temperature_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/pika_wdt.c:121:8-24: WARNING: pikawdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/pnx833x_wdt.c:119:8-24: WARNING: pnx833x_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/rc32434_wdt.c:153:8-24: WARNING: rc32434_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/rdc321x_wdt.c:145:8-24: WARNING: rdc321x_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/riowd.c:79:1-17: WARNING: riowd_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/sa1100_wdt.c:62:8-24: WARNING: sa1100dog_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/sbc60xxwdt.c:211:8-24: WARNING: wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/sbc7240_wdt.c:139:8-24: WARNING: wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/sbc8360.c:274:8-24: WARNING: sbc8360_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/sbc_epx_c3.c:81:8-24: WARNING: epx_c3_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/sbc_fitpc2_wdt.c:78:8-24: WARNING: fitpc2_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/sb_wdog.c:108:1-17: WARNING: sbwdog_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/sc1200wdt.c:181:8-24: WARNING: sc1200wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/sc520_wdt.c:261:8-24: WARNING: wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/sch311x_wdt.c:319:8-24: WARNING: sch311x_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/scx200_wdt.c:105:8-24: WARNING: scx200_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/smsc37b787_wdt.c:369:8-24: WARNING: wb_smsc_wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/w83877f_wdt.c:227:8-24: WARNING: wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/w83977f_wdt.c:301:8-24: WARNING: wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/wafer5823wdt.c:200:8-24: WARNING: wafwdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/watchdog_dev.c:828:8-24: WARNING: watchdog_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/wdrtas.c:379:8-24: WARNING: wdrtas_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/wdrtas.c:445:8-24: WARNING: wdrtas_temp_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/wdt285.c:104:1-17: WARNING: watchdog_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/wdt977.c:276:8-24: WARNING: wdt977_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/wdt.c:424:8-24: WARNING: wdt_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/wdt.c:484:8-24: WARNING: wdt_temp_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/wdt_pci.c:464:8-24: WARNING: wdtpci_fops: .write() has stream semantic; safe to change nonseekable_open -> stream_open.
	drivers/watchdog/wdt_pci.c:527:8-24: WARNING: wdtpci_temp_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	net/batman-adv/log.c:105:1-17: WARNING: batadv_log_fops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	sound/core/control.c:57:7-23: WARNING: snd_ctl_f_ops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.
	sound/core/rawmidi.c:385:7-23: WARNING: snd_rawmidi_f_ops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	sound/core/seq/seq_clientmgr.c:310:7-23: WARNING: snd_seq_f_ops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open.
	sound/core/timer.c:1428:7-23: WARNING: snd_timer_f_ops: .read() has stream semantic; safe to change nonseekable_open -> stream_open.

One can also recheck/review the patch via generating it with explanation comments included via

	$ make coccicheck MODE=patch COCCI=scripts/coccinelle/api/stream_open.cocci SPFLAGS="-D explain"

(*) This second group also contains cases with read/write deadlocks that
stream_open.cocci don't yet detect, but which are still valid to convert to
stream_open since ppos is not used. For example drivers/pci/switch/switchtec.c
calls wait_for_completion_interruptible() in its .read, but stream_open.cocci
currently detects only "wait_event*" as blocking.

Cc: Michael Kerrisk <[email protected]>
Cc: Yongzhi Pan <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: David Vrabel <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: Miklos Szeredi <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Kirill Tkhai <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Julia Lawall <[email protected]>
Cc: Nikolaus Rath <[email protected]>
Cc: Han-Wen Nienhuys <[email protected]>
Cc: Anatolij Gustschin <[email protected]>
Cc: Jeff Dike <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: "James R. Van Zandt" <[email protected]>
Cc: Corey Minyard <[email protected]>
Cc: Harald Welte <[email protected]>
Acked-by: Lubomir Rintel <[email protected]> [scr24x_cs]
Cc: Stefan Richter <[email protected]>
Cc: Johan Hovold <[email protected]>
Cc: David Herrmann <[email protected]>
Cc: Jiri Kosina <[email protected]>
Cc: Benjamin Tissoires <[email protected]>
Cc: Jean Delvare <[email protected]>
Acked-by: Guenter Roeck <[email protected]>	[watchdog/* hwmon/*]
Cc: Rudolf Marek <[email protected]>
Cc: Dmitry Torokhov <[email protected]>
Cc: Karsten Keil <[email protected]>
Cc: Jacek Anaszewski <[email protected]>
Cc: Pavel Machek <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Kurt Schwemmer <[email protected]>
Acked-by: Logan Gunthorpe <[email protected]> [drivers/pci/switch/switchtec]
Acked-by: Bjorn Helgaas <[email protected]> [drivers/pci/switch/switchtec]
Cc: Benson Leung <[email protected]>
Acked-by: Enric Balletbo i Serra <[email protected]> [platform/chrome]
Cc: Alessandro Zummo <[email protected]>
Acked-by: Alexandre Belloni <[email protected]> [rtc/*]
Cc: Mark Brown <[email protected]>
Cc: Wim Van Sebroeck <[email protected]>
Cc: Florian Fainelli <[email protected]>
Cc: [email protected]
Cc: Wan ZongShun <[email protected]>
Cc: Zwane Mwaikambo <[email protected]>
Cc: Marek Lindner <[email protected]>
Cc: Simon Wunderlich <[email protected]>
Cc: Antonio Quartulli <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Jaroslav Kysela <[email protected]>
Cc: Takashi Iwai <[email protected]>
Signed-off-by: Kirill Smelkov <[email protected]>
This commit is contained in:
Kirill Smelkov 2019-03-26 23:51:19 +03:00
commit c5bf68fe0c
103 changed files with 109 additions and 109 deletions

View file

@ -200,7 +200,7 @@ static int acq_open(struct inode *inode, struct file *file)
/* Activate */
acq_keepalive();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int acq_close(struct inode *inode, struct file *file)

View file

@ -199,7 +199,7 @@ static int advwdt_open(struct inode *inode, struct file *file)
*/
advwdt_ping();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int advwdt_close(struct inode *inode, struct file *file)

View file

@ -249,7 +249,7 @@ static int ali_open(struct inode *inode, struct file *file)
/* Activate */
ali_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/*

View file

@ -214,7 +214,7 @@ static int fop_open(struct inode *inode, struct file *file)
return -EBUSY;
/* Good, fire up the show */
wdt_startup();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int fop_close(struct inode *inode, struct file *file)

View file

@ -163,7 +163,7 @@ static int ar7_wdt_open(struct inode *inode, struct file *file)
ar7_wdt_enable_wdt();
expect_close = 0;
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int ar7_wdt_release(struct inode *inode, struct file *file)

View file

@ -110,7 +110,7 @@ static int at91_wdt_open(struct inode *inode, struct file *file)
return -EBUSY;
at91_wdt_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/*

View file

@ -132,7 +132,7 @@ static int ath79_wdt_open(struct inode *inode, struct file *file)
clear_bit(WDT_FLAGS_EXPECT_CLOSE, &wdt_flags);
ath79_wdt_enable();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int ath79_wdt_release(struct inode *inode, struct file *file)

View file

@ -116,7 +116,7 @@ static int bcm63xx_wdt_open(struct inode *inode, struct file *file)
return -EBUSY;
bcm63xx_wdt_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int bcm63xx_wdt_release(struct inode *inode, struct file *file)

View file

@ -140,7 +140,7 @@ static int cpu5wdt_open(struct inode *inode, struct file *file)
{
if (test_and_set_bit(0, &cpu5wdt_device.inuse))
return -EBUSY;
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int cpu5wdt_release(struct inode *inode, struct file *file)

View file

@ -394,7 +394,7 @@ static int cpwd_open(struct inode *inode, struct file *f)
mutex_unlock(&cpwd_mutex);
return nonseekable_open(inode, f);
return stream_open(inode, f);
}
static int cpwd_release(struct inode *inode, struct file *file)

View file

@ -316,7 +316,7 @@ static int eurwdt_open(struct inode *inode, struct file *file)
eurwdt_timeout = WDT_TIMEOUT; /* initial timeout */
/* Activate the WDT */
eurwdt_activate_timer();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/**

View file

@ -525,7 +525,7 @@ static int watchdog_open(struct inode *inode, struct file *file)
__module_get(THIS_MODULE);
watchdog.expect_close = 0;
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int watchdog_release(struct inode *inode, struct file *file)

View file

@ -229,7 +229,7 @@ static int gef_wdt_open(struct inode *inode, struct file *file)
gef_wdt_handler_enable();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int gef_wdt_release(struct inode *inode, struct file *file)

View file

@ -92,7 +92,7 @@ static int geodewdt_open(struct inode *inode, struct file *file)
__module_get(THIS_MODULE);
geodewdt_ping();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int geodewdt_release(struct inode *inode, struct file *file)

View file

@ -238,7 +238,7 @@ static int ibwdt_open(struct inode *inode, struct file *file)
/* Activate */
ibwdt_ping();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int ibwdt_close(struct inode *inode, struct file *file)

View file

@ -323,7 +323,7 @@ static int asr_open(struct inode *inode, struct file *file)
asr_toggle();
asr_enable();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int asr_release(struct inode *inode, struct file *file)

View file

@ -77,7 +77,7 @@ static int indydog_open(struct inode *inode, struct file *file)
pr_info("Started watchdog timer\n");
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int indydog_release(struct inode *inode, struct file *file)

View file

@ -304,7 +304,7 @@ static int intel_scu_open(struct inode *inode, struct file *file)
if (watchdog_device.driver_closed)
return -EPERM;
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int intel_scu_release(struct inode *inode, struct file *file)

View file

@ -101,7 +101,7 @@ static int iop_wdt_open(struct inode *inode, struct file *file)
clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
wdt_enable();
set_bit(WDT_ENABLED, &wdt_status);
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static ssize_t iop_wdt_write(struct file *file, const char *data, size_t len,

View file

@ -327,7 +327,7 @@ static int it8712f_wdt_open(struct inode *inode, struct file *file)
ret = it8712f_wdt_enable();
if (ret)
return ret;
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int it8712f_wdt_release(struct inode *inode, struct file *file)

View file

@ -65,7 +65,7 @@ static int ixp4xx_wdt_open(struct inode *inode, struct file *file)
clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
wdt_enable();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static ssize_t

View file

@ -142,7 +142,7 @@ static int ks8695_wdt_open(struct inode *inode, struct file *file)
return -EBUSY;
ks8695_wdt_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/*

View file

@ -85,7 +85,7 @@ static int m54xx_wdt_open(struct inode *inode, struct file *file)
clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
wdt_enable();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static ssize_t m54xx_wdt_write(struct file *file, const char *data,

View file

@ -333,7 +333,7 @@ static int zf_open(struct inode *inode, struct file *file)
if (nowayout)
__module_get(THIS_MODULE);
zf_timer_on();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int zf_close(struct inode *inode, struct file *file)

View file

@ -150,7 +150,7 @@ static int mixcomwd_open(struct inode *inode, struct file *file)
mixcomwd_timer_alive = 0;
}
}
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int mixcomwd_release(struct inode *inode, struct file *file)

View file

@ -118,7 +118,7 @@ static int mtx1_wdt_open(struct inode *inode, struct file *file)
{
if (test_and_set_bit(0, &mtx1_wdt_device.inuse))
return -EBUSY;
return nonseekable_open(inode, file);
return stream_open(inode, file);
}

View file

@ -133,7 +133,7 @@ static int mv64x60_wdt_open(struct inode *inode, struct file *file)
mv64x60_wdt_handler_enable();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int mv64x60_wdt_release(struct inode *inode, struct file *file)

View file

@ -131,7 +131,7 @@ static int nuc900_wdt_open(struct inode *inode, struct file *file)
nuc900_wdt_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int nuc900_wdt_close(struct inode *inode, struct file *file)

View file

@ -161,7 +161,7 @@ static int nv_tco_open(struct inode *inode, struct file *file)
/* Reload and activate timer */
tco_timer_keepalive();
tco_timer_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int nv_tco_release(struct inode *inode, struct file *file)

View file

@ -286,7 +286,7 @@ static int pc87413_open(struct inode *inode, struct file *file)
pr_info("Watchdog enabled. Timeout set to %d minute(s).\n", timeout);
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/**

View file

@ -695,7 +695,7 @@ static int pcwd_open(struct inode *inode, struct file *file)
/* Activate */
pcwd_start();
pcwd_keepalive();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int pcwd_close(struct inode *inode, struct file *file)
@ -734,7 +734,7 @@ static int pcwd_temp_open(struct inode *inode, struct file *file)
if (!pcwd_private.supports_temp)
return -ENODEV;
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int pcwd_temp_close(struct inode *inode, struct file *file)

View file

@ -578,7 +578,7 @@ static int pcipcwd_open(struct inode *inode, struct file *file)
/* Activate */
pcipcwd_start();
pcipcwd_keepalive();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int pcipcwd_release(struct inode *inode, struct file *file)
@ -620,7 +620,7 @@ static int pcipcwd_temp_open(struct inode *inode, struct file *file)
if (!pcipcwd_private.supports_temp)
return -ENODEV;
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int pcipcwd_temp_release(struct inode *inode, struct file *file)

View file

@ -485,7 +485,7 @@ static int usb_pcwd_open(struct inode *inode, struct file *file)
/* Activate */
usb_pcwd_start(usb_pcwd_device);
usb_pcwd_keepalive(usb_pcwd_device);
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int usb_pcwd_release(struct inode *inode, struct file *file)
@ -524,7 +524,7 @@ static ssize_t usb_pcwd_temperature_read(struct file *file, char __user *data,
static int usb_pcwd_temperature_open(struct inode *inode, struct file *file)
{
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int usb_pcwd_temperature_release(struct inode *inode, struct file *file)

View file

@ -118,7 +118,7 @@ static int pikawdt_open(struct inode *inode, struct file *file)
pikawdt_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/*

View file

@ -116,7 +116,7 @@ static int pnx833x_wdt_open(struct inode *inode, struct file *file)
pr_info("Started watchdog timer\n");
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int pnx833x_wdt_release(struct inode *inode, struct file *file)

View file

@ -150,7 +150,7 @@ static int rc32434_wdt_open(struct inode *inode, struct file *file)
rc32434_wdt_start();
rc32434_wdt_ping();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int rc32434_wdt_release(struct inode *inode, struct file *file)

View file

@ -142,7 +142,7 @@ static int rdc321x_wdt_open(struct inode *inode, struct file *file)
if (test_and_set_bit(0, &rdc321x_wdt_device.inuse))
return -EBUSY;
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int rdc321x_wdt_release(struct inode *inode, struct file *file)

View file

@ -76,7 +76,7 @@ static void riowd_writereg(struct riowd *p, u8 val, int index)
static int riowd_open(struct inode *inode, struct file *filp)
{
nonseekable_open(inode, filp);
stream_open(inode, filp);
return 0;
}

View file

@ -59,7 +59,7 @@ static int sa1100dog_open(struct inode *inode, struct file *file)
writel_relaxed(OSSR_M3, OSSR);
writel_relaxed(OWER_WME, OWER);
writel_relaxed(readl_relaxed(OIER) | OIER_E3, OIER);
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/*

View file

@ -105,7 +105,7 @@ static const struct watchdog_info ident = {
*/
static int sbwdog_open(struct inode *inode, struct file *file)
{
nonseekable_open(inode, file);
stream_open(inode, file);
if (test_and_set_bit(0, &sbwdog_gate))
return -EBUSY;
__module_get(THIS_MODULE);

View file

@ -208,7 +208,7 @@ static int fop_open(struct inode *inode, struct file *file)
/* Good, fire up the show */
wdt_startup();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int fop_close(struct inode *inode, struct file *file)

View file

@ -136,7 +136,7 @@ static int fop_open(struct inode *inode, struct file *file)
wdt_enable();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int fop_close(struct inode *inode, struct file *file)

View file

@ -271,7 +271,7 @@ static int sbc8360_open(struct inode *inode, struct file *file)
/* Activate and ping once to start the countdown */
sbc8360_activate();
sbc8360_ping();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int sbc8360_close(struct inode *inode, struct file *file)

View file

@ -78,7 +78,7 @@ static int epx_c3_open(struct inode *inode, struct file *file)
epx_c3_alive = 1;
pr_info("Started watchdog timer\n");
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int epx_c3_release(struct inode *inode, struct file *file)

View file

@ -75,7 +75,7 @@ static int fitpc2_wdt_open(struct inode *inode, struct file *file)
wdt_enable();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static ssize_t fitpc2_wdt_write(struct file *file, const char *data,

View file

@ -178,7 +178,7 @@ static int sc1200wdt_open(struct inode *inode, struct file *file)
sc1200wdt_start();
pr_info("Watchdog enabled, timeout = %d min(s)", timeout);
return nonseekable_open(inode, file);
return stream_open(inode, file);
}

View file

@ -258,7 +258,7 @@ static int fop_open(struct inode *inode, struct file *file)
/* Good, fire up the show */
wdt_startup();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int fop_close(struct inode *inode, struct file *file)

View file

@ -316,7 +316,7 @@ static int sch311x_wdt_open(struct inode *inode, struct file *file)
* Activate
*/
sch311x_wdt_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int sch311x_wdt_close(struct inode *inode, struct file *file)

View file

@ -102,7 +102,7 @@ static int scx200_wdt_open(struct inode *inode, struct file *file)
return -EBUSY;
scx200_wdt_enable();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int scx200_wdt_release(struct inode *inode, struct file *file)

View file

@ -366,7 +366,7 @@ static int wb_smsc_wdt_open(struct inode *inode, struct file *file)
pr_info("Watchdog enabled. Timeout set to %d %s\n",
timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)");
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/* close => shut off the timer */

View file

@ -224,7 +224,7 @@ static int fop_open(struct inode *inode, struct file *file)
/* Good, fire up the show */
wdt_startup();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int fop_close(struct inode *inode, struct file *file)

View file

@ -298,7 +298,7 @@ static int wdt_open(struct inode *inode, struct file *file)
__module_get(THIS_MODULE);
wdt_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int wdt_release(struct inode *inode, struct file *file)

View file

@ -197,7 +197,7 @@ static int wafwdt_open(struct inode *inode, struct file *file)
* Activate
*/
wafwdt_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int wafwdt_close(struct inode *inode, struct file *file)

View file

@ -825,7 +825,7 @@ static int watchdog_open(struct inode *inode, struct file *file)
kref_get(&wd_data->kref);
/* dev/watchdog is a virtual (and thus non-seekable) filesystem */
return nonseekable_open(inode, file);
return stream_open(inode, file);
out_mod:
module_put(wd_data->wdd->ops->owner);

View file

@ -376,7 +376,7 @@ static int wdrtas_open(struct inode *inode, struct file *file)
wdrtas_timer_start();
wdrtas_timer_keepalive();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/**
@ -442,7 +442,7 @@ static ssize_t wdrtas_temp_read(struct file *file, char __user *buf,
*/
static int wdrtas_temp_open(struct inode *inode, struct file *file)
{
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/**

View file

@ -421,7 +421,7 @@ static int wdt_open(struct inode *inode, struct file *file)
* Activate
*/
wdt_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/**
@ -481,7 +481,7 @@ static ssize_t wdt_temp_read(struct file *file, char __user *buf,
static int wdt_temp_open(struct inode *inode, struct file *file)
{
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/**

View file

@ -101,7 +101,7 @@ static int watchdog_open(struct inode *inode, struct file *file)
ret = 0;
#endif
nonseekable_open(inode, file);
stream_open(inode, file);
return ret;
}

View file

@ -273,7 +273,7 @@ static int wdt977_open(struct inode *inode, struct file *file)
__module_get(THIS_MODULE);
wdt977_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
static int wdt977_release(struct inode *inode, struct file *file)

View file

@ -461,7 +461,7 @@ static int wdtpci_open(struct inode *inode, struct file *file)
* Activate
*/
wdtpci_start();
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/**
@ -524,7 +524,7 @@ static ssize_t wdtpci_temp_read(struct file *file, char __user *buf,
static int wdtpci_temp_open(struct inode *inode, struct file *file)
{
return nonseekable_open(inode, file);
return stream_open(inode, file);
}
/**