stream_open related patches for Linux 5.2

https://lore.kernel.org/linux-fsdevel/CAHk-=wg1tFzcaX2v9Z91vPJiBR486ddW5MtgDL02-fOen2F0Aw@mail.gmail.com/T/#m5b2d9ad3aeacea4bd6aa1964468ac074bf3aa5bf
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Merge tag 'stream_open-5.2' of https://lab.nexedi.com/kirr/linux

Pull stream_open conversion from Kirill Smelkov:

 - remove unnecessary double nonseekable_open from drivers/char/dtlk.c
   as noticed by Pavel Machek while reviewing nonseekable_open ->
   stream_open mass conversion.

 - the mass conversion patch promised in commit 10dce8af34 ("fs:
   stream_open - opener for stream-like files so that read and write can
   run simultaneously without deadlock") and is automatically generated
   by running

        $ make coccicheck MODE=patch COCCI=scripts/coccinelle/api/stream_open.cocci

   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. More details on this in the
   patch.

 - finally, change VFS to pass ppos=NULL into .read/.write for files
   that declare themselves streams. It was suggested by Rasmus Villemoes
   and makes sure that if ppos starts to be erroneously used in a stream
   file, such bug won't go unnoticed and will produce an oops instead of
   creating illusion of position change being taken into account.

   Note: this patch does not conflict with "fuse: Add FOPEN_STREAM to
   use stream_open()" that will be hopefully coming via FUSE tree,
   because fs/fuse/ uses new-style .read_iter/.write_iter, and for these
   accessors position is still passed as non-pointer kiocb.ki_pos .

* tag 'stream_open-5.2' of https://lab.nexedi.com/kirr/linux:
  vfs: pass ppos=NULL to .read()/.write() of FMODE_STREAM files
  *: convert stream-like files from nonseekable_open -> stream_open
  dtlk: remove double call to nonseekable_open

drivers/watchdog/acquirewdt.c

@@ -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)

drivers/watchdog/advantechwdt.c

@@ -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)

drivers/watchdog/alim1535_wdt.c

@@ -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);
 }
 
 /*

drivers/watchdog/alim7101_wdt.c

@@ -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)

drivers/watchdog/ar7_wdt.c

@@ -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)

drivers/watchdog/at91rm9200_wdt.c

@@ -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);
 }
 
 /*

drivers/watchdog/ath79_wdt.c

@@ -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)

drivers/watchdog/bcm63xx_wdt.c

@@ -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)

drivers/watchdog/cpu5wdt.c

@@ -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)

drivers/watchdog/cpwd.c

@@ -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)

drivers/watchdog/eurotechwdt.c

@@ -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);
 }
 
 /**

drivers/watchdog/f71808e_wdt.c

@@ -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)

drivers/watchdog/gef_wdt.c

@@ -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)

drivers/watchdog/geodewdt.c

@@ -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)

drivers/watchdog/ib700wdt.c

@@ -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)

drivers/watchdog/ibmasr.c

@@ -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)

drivers/watchdog/indydog.c

@@ -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)

drivers/watchdog/intel_scu_watchdog.c

@@ -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)

drivers/watchdog/iop_wdt.c

@@ -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,

drivers/watchdog/it8712f_wdt.c

@@ -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)

drivers/watchdog/ixp4xx_wdt.c

@@ -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

drivers/watchdog/ks8695_wdt.c

@@ -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);
 }
 
 /*

drivers/watchdog/m54xx_wdt.c

@@ -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,

drivers/watchdog/machzwd.c

@@ -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)

drivers/watchdog/mixcomwd.c

@@ -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)

drivers/watchdog/mtx-1_wdt.c

@@ -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);
 }
 
 

drivers/watchdog/mv64x60_wdt.c

@@ -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)

drivers/watchdog/nuc900_wdt.c

@@ -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)

drivers/watchdog/nv_tco.c

@@ -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)

drivers/watchdog/pc87413_wdt.c

@@ -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);
 }
 
 /**

drivers/watchdog/pcwd.c

@@ -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)

drivers/watchdog/pcwd_pci.c

@@ -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)

drivers/watchdog/pcwd_usb.c

@@ -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)

drivers/watchdog/pika_wdt.c

@@ -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);
 }
 
 /*

drivers/watchdog/pnx833x_wdt.c

@@ -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)

drivers/watchdog/rc32434_wdt.c

@@ -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)

drivers/watchdog/rdc321x_wdt.c

@@ -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)

drivers/watchdog/riowd.c

@@ -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;
 }
 

drivers/watchdog/sa1100_wdt.c

@@ -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);
 }
 
 /*

drivers/watchdog/sb_wdog.c

@@ -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);

drivers/watchdog/sbc60xxwdt.c

@@ -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)

drivers/watchdog/sbc7240_wdt.c

@@ -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)

drivers/watchdog/sbc8360.c

@@ -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)

drivers/watchdog/sbc_epx_c3.c

@@ -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)

drivers/watchdog/sbc_fitpc2_wdt.c

@@ -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,

drivers/watchdog/sc1200wdt.c

@@ -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);
 }
 
 

drivers/watchdog/sc520_wdt.c

@@ -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)

drivers/watchdog/sch311x_wdt.c

@@ -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)

drivers/watchdog/scx200_wdt.c

@@ -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)

drivers/watchdog/smsc37b787_wdt.c

@@ -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 */

drivers/watchdog/w83877f_wdt.c

@@ -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)

drivers/watchdog/w83977f_wdt.c

@@ -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)

drivers/watchdog/wafer5823wdt.c

@@ -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)

drivers/watchdog/watchdog_dev.c

@@ -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);

drivers/watchdog/wdrtas.c

@@ -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);
 }
 
 /**

drivers/watchdog/wdt.c

@@ -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);
 }
 
 /**

drivers/watchdog/wdt285.c

@@ -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;
 }
 

drivers/watchdog/wdt977.c

@@ -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)

drivers/watchdog/wdt_pci.c

@@ -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);
 }
 
 /**