Commit graph

435,212 commits

Author SHA1 Message Date
Valentina Manea
52d04485bd staging: usbip: userspace: add new list API
Take the linked list implementation from the Linux Kernel
and strip it down to what it is needed.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:46:42 -08:00
Valentina Manea
29a30ad7be staging: usbip: userspace: re-add interface information listing
This was deleted in the driver conversion patch. It didn't need
to be deleted; showing more information is ok.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:46:42 -08:00
Valentina Manea
37765c13f0 staging: usbip: userspace: migrate usbip_list to libudev
This patch modifies usbip_list to use libudev.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:46:41 -08:00
Valentina Manea
d561ef95e1 staging: usbip: userspace: migrate usbip_unbind to libudev
This patch modifies usbip_unbind to use libudev.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:46:41 -08:00
Valentina Manea
c522a03ad1 staging: usbip: userspace: remove useless libsysfs includes
This patch removes useless libsysfs.h includes in various
userspace files.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:46:41 -08:00
Valentina Manea
1e94031973 staging: usbip: userspace: migrate usbip_bind to libudev
This patch adds autoconf check for libudev and migrates
usbip_bind to the new library.

libsysfs will still be used until all userspace is modified.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:46:41 -08:00
Alexey Khoroshilov
0669e5fa80 staging: dgap: implement proper error handling in dgap_start()
dgap_start() ignored errors in class_create() and device_create().
The patch implements proper error handling.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:44:35 -08:00
Alexey Khoroshilov
af07daa0af staging: dgap: remove unneeded status variables
dgap_driver_start and dgap_Major_Control_Registered are used
to keep status of initialization of the driver as a whole and its "Major Control".
But the code that checks them is executed once on module init/unload.
That makes no sense in these variables as far as their values are predictable
at any time.

Also "dgap_downld" device was removed, while
device_destroy(MKDEV(DIGI_DGAP_MAJOR, 1)) is still in dgap_cleanup_module().
The patch removes it by the way.

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:44:35 -08:00
Ken Cox
61a0bc0f1f Staging: unisys: Fix multiple variable length array declarations
There were multiple variable length arrays declared on the stack in proc
handlers:
	char buf[count];

I changed these to be fixed length arrays.

Signed-off-by: Ken Cox <jkc@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:42:15 -08:00
Benjamin Romer
56df012266 staging: unisys: update MAINTAINERS and TODO
This patch adds the Unisys s-Par driver maintainers to the MAINTAINERS
file, changes the state to "Supported", modifies TODO to address patches
to the Unisys mailing list, and adds Greg Kroah-Hartman to the patch
recipients list.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:42:14 -08:00
Ken Cox
27dd554839 Staging: unisys: uislib: Fix locking in info_proc_read_helper()
Make sure BusListLock is unlocked before returning.  If an error is encountered
early on in info_proc_read_helper() the function can return without unlocking.

Also changed the PROCLINE macro so that it doesn't include a goto statement.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ken Cox <jkc@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:42:14 -08:00
Ken Cox
bed3b10d20 Staging: unisys: virthba: Fix variable length array
A character array was declared on the stack with variable length.  This has
been corrected to use a fixed length.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ken Cox <jkc@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:42:14 -08:00
Dan Carpenter
a16a027651 staging: unisys/uislib: kthread_create() returns an ERR_PTR
kthread_create() returns an ERR_PTR on error, it never returns NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:42:14 -08:00
Shaun Laing
d66b744ac6 staging: cxt1e1: change declaration of TWV_table
Changes the declaration of TWV_table to 'static void' to eliminate a sparse
"should it be static" warning.

Signed-off-by: Shaun Laing <shaun@xresource.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:39:41 -08:00
Daeseok Youn
95ad072473 staging: frontier: fix memory leak in usb_alphatrack_probe()
oldi_buffer and write_buffer need to free when usb_alphatrack_delete()
is called.

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:39:40 -08:00
Daeseok Youn
61b0f7e5b5 staging: cxt1e1: fix checkpatch errors with open brace '{'
clean up checkpatch.pl error in linux.c:
 ERROR: that open brace { should be on the previous line

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:34:15 -08:00
Daeseok Youn
ccf0119c95 staging: cxt1e1: fix checkpatch error 'assignment in if condition'
checkpatch.pl error in linux.c:
 ERROR: do not use assignment in if condition

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:34:15 -08:00
Malcolm Priestley
12ca22b0d6 staging: vt6655: 64 bit fix sizeof long TKIP mic
Change to u32 and fix debug message format

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:31:32 -08:00
Malcolm Priestley
35a9562b02 staging: vt6655: 64 bit fixes TKIP mic correct sizeof long.
Correct to endian base type __le32.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:31:31 -08:00
Malcolm Priestley
d0daef301d staging: vt6655: 64 bit fixes :TKIP mode micheal.c sizeof long.
Fix MIC_vGetMIC and MIC_vInit to u32

Fix calling functions to u32

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:31:31 -08:00
Malcolm Priestley
4dbc77c098 staging: vt6655: 64 bit fixes: MACvSetKeyEntry correct sizeof long,
Use u32 to correct the pointer of pdwKey and the size of dwData.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:31:31 -08:00
Malcolm Priestley
829127b438 staging: vt6655: 64 bit Correct alignment of tx/rx structures.
Aligment of pointers on 64 bit is incorrect.

Align to 64 bit using aligned 8 bytes and remove structure packing.

This allows the device to run on both 32 and 64 bit

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:31:31 -08:00
Thomas Pugliese
335053fe8c usb: wusbcore: use multiple urbs for HWA iso transfer result frame reads
Submit multiple concurrent urbs for HWA isochronous transfer result data
frame reads.  This keeps the read pipeline full and significantly
improves performance in cases where the frame reads cannot be combined
because they are not contiguous or multiples of the max packet size.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:30:28 -08:00
Thomas Pugliese
04a378f36d usb: wusbcore: combine iso transfer result frame reads when possible
When reading the transfer result data for an isochronous in request, if
the current frame actual_length is contiguous with the next frame and
actual_length is a multiple of the DTI endpoint max packet size, combine
the current frame with the next frame in a single URB.  This reduces the
number of URBs that must be submitted in that case which increases
performance and reduces CPU interrupt overhead.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:30:28 -08:00
Ingo Molnar
ebade5e833 serial: 8250: Clean up the locking for -rt
In -RT the spin_lock_irqsave() does not spin but sleep if the lock is
taken. Before that, local_irq_save() is invoked which disables
interrupts even on -RT. Therefore local_irq_save() + spin_lock() does not
work.
In the ->sysrq and oops_in_progress case it is save to trylock the lock
i.e. this is what we do now anyway except for ->sysrq where we assume
that the lock is already taken.

The spin_lock_irqsave() grabs the lock and disables the interrupts on
vanilla (the same behavior) and on -RT it won't disable interrupts.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[bigeasy: add a patch description]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:24:53 -08:00
Aaron Sierra
41d3f09913 serial: 8250_pci: change BayTrail default uartclk
The Intel BayTrail HSUART power-on default reference clock is 44.2368 MHz,
but 73.728 MHz provides 0% error for additional "conventional" baud rates
above 460800 (e.g. 576000, 921600, and 1152000).

Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:24:53 -08:00
Aaron Sierra
50825c57ab serial: 8250_pci: more BayTrail error-free bauds
Support the following additional baud rates with 0% error:
	500000, 1500000, 2500000, 3500000

Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:24:53 -08:00
Jean Delvare
0f78a11e24 cs5535-mfgpt: Simplify dependencies
The bus and architecture dependencies are already on MFD_CS5535, so
there is no need to repeat them here.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:15:52 -08:00
Josh Cartwright
442d40a28e spmi: pm: drop bus-level PM suspend/resume routines
SPMI defines the behavior of a device in the "SLEEP" state as being
"user-defined or specified by the device manufacturer".  Without
clearly-defined bus-level semantics for low-power states, push the
responsibility of transitioning a device into/out of "SLEEP" into SPMI
device drivers.

Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:15:52 -08:00
Josh Cartwright
2415fc6768 spmi: pmic_arb: make selectable on ARCH_QCOM
With the split of Qualcomm MSM support into legacy and multiplatform,
the SPMI PMIC arb driver is only relevant on the multiplatform supported
SoCs. Switch the Kconfig depends to ARCH_QCOM.

Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:15:52 -08:00
K. Y. Srinivasan
7e5ec36834 Drivers: hv: vmbus: Increase the limit on the number of pfns we can handle
Increase the number of PFNs we can handle in a single vmbus packet.
Some network packets may have more PFNs than the current limit we have.
This is not a bug and this patch can be applied to the *next tree.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:15:52 -08:00
Alexander Stein
a246b97358 pch_phub: Report error writing MAC back to user
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:15:51 -08:00
Olof Johansson
4058f76247 Rename pinctrl dt binding to restore consistency with
other bcm mobile bindings.
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Merge tag 'bcm-for-3.14-pinctrl-reduced-rename' of git://github.com/broadcom/bcm11351 into fixes

Merge 'bcm pinctrl rename' From Christin Daudt:

Rename pinctrl dt binding to restore consistency with other bcm mobile
bindings.

* tag 'bcm-for-3.14-pinctrl-reduced-rename' of git://github.com/broadcom/bcm11351:
  pinctrl: Rename Broadcom Capri pinctrl binding
  pinctrl: refer to updated dt binding string.
  Update dtsi with new pinctrl compatible string
  + Linux 3.14-rc4

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08 22:11:16 -08:00
Olof Johansson
614cd4a4ac Two fixes for device trees additions that got added in 3.14. One fixes the
interrupt types of some IPs, the other fixes up a compatible that got
 introduced during 3.14
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Merge tag 'sunxi-fixes-for-3.14' of https://github.com/mripard/linux into fixes

Allwinner fixes from Maxime Ripard:

Two fixes for device trees additions that got added in 3.14. One fixes the
interrupt types of some IPs, the other fixes up a compatible that got
introduced during 3.14

* tag 'sunxi-fixes-for-3.14' of https://github.com/mripard/linux:
  ARM: sunxi: dt: Change the touchscreen compatibles
  ARM: sun7i: dt: Fix interrupt trigger types

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08 22:09:23 -08:00
Tejun Heo
b7ce40cff0 kernfs: cache atomic_write_len in kernfs_open_file
While implementing atomic_write_len, 4d3773c4bb ("kernfs: implement
kernfs_ops->atomic_write_len") moved data copy from userland inside
kernfs_get_active() and kernfs_open_file->mutex so that
kernfs_ops->atomic_write_len can be accessed before copying buffer
from userland; unfortunately, this could lead to locking order
inversion involving mmap_sem if copy_from_user() takes a page fault.

  ======================================================
  [ INFO: possible circular locking dependency detected ]
  3.14.0-rc4-next-20140228-sasha-00011-g4077c67-dirty #26 Tainted: G        W
  -------------------------------------------------------
  trinity-c236/10658 is trying to acquire lock:
   (&of->mutex#2){+.+.+.}, at: [<fs/kernfs/file.c:487>] kernfs_fop_mmap+0x54/0x120

  but task is already holding lock:
   (&mm->mmap_sem){++++++}, at: [<mm/util.c:397>] vm_mmap_pgoff+0x6e/0xe0

  which lock already depends on the new lock.

  the existing dependency chain (in reverse order) is:

 -> #1 (&mm->mmap_sem){++++++}:
	 [<kernel/locking/lockdep.c:1945 kernel/locking/lockdep.c:2131>] validate_chain+0x6c5/0x7b0
	 [<kernel/locking/lockdep.c:3182>] __lock_acquire+0x4cd/0x5a0
	 [<arch/x86/include/asm/current.h:14 kernel/locking/lockdep.c:3602>] lock_acquire+0x182/0x1d0
	 [<mm/memory.c:4188>] might_fault+0x7e/0xb0
	 [<arch/x86/include/asm/uaccess.h:713 fs/kernfs/file.c:291>] kernfs_fop_write+0xd8/0x190
	 [<fs/read_write.c:473>] vfs_write+0xe3/0x1d0
	 [<fs/read_write.c:523 fs/read_write.c:515>] SyS_write+0x5d/0xa0
	 [<arch/x86/kernel/entry_64.S:749>] tracesys+0xdd/0xe2

 -> #0 (&of->mutex#2){+.+.+.}:
	 [<kernel/locking/lockdep.c:1840>] check_prev_add+0x13f/0x560
	 [<kernel/locking/lockdep.c:1945 kernel/locking/lockdep.c:2131>] validate_chain+0x6c5/0x7b0
	 [<kernel/locking/lockdep.c:3182>] __lock_acquire+0x4cd/0x5a0
	 [<arch/x86/include/asm/current.h:14 kernel/locking/lockdep.c:3602>] lock_acquire+0x182/0x1d0
	 [<kernel/locking/mutex.c:470 kernel/locking/mutex.c:571>] mutex_lock_nested+0x6a/0x510
	 [<fs/kernfs/file.c:487>] kernfs_fop_mmap+0x54/0x120
	 [<mm/mmap.c:1573>] mmap_region+0x310/0x5c0
	 [<mm/mmap.c:1365>] do_mmap_pgoff+0x385/0x430
	 [<mm/util.c:399>] vm_mmap_pgoff+0x8f/0xe0
	 [<mm/mmap.c:1416 mm/mmap.c:1374>] SyS_mmap_pgoff+0x1b0/0x210
	 [<arch/x86/kernel/sys_x86_64.c:72>] SyS_mmap+0x1d/0x20
	 [<arch/x86/kernel/entry_64.S:749>] tracesys+0xdd/0xe2

  other info that might help us debug this:

   Possible unsafe locking scenario:

	 CPU0                    CPU1
	 ----                    ----
    lock(&mm->mmap_sem);
				 lock(&of->mutex#2);
				 lock(&mm->mmap_sem);
    lock(&of->mutex#2);

   *** DEADLOCK ***

  1 lock held by trinity-c236/10658:
   #0:  (&mm->mmap_sem){++++++}, at: [<mm/util.c:397>] vm_mmap_pgoff+0x6e/0xe0

  stack backtrace:
  CPU: 2 PID: 10658 Comm: trinity-c236 Tainted: G        W 3.14.0-rc4-next-20140228-sasha-00011-g4077c67-dirty #26
   0000000000000000 ffff88011911fa48 ffffffff8438e945 0000000000000000
   0000000000000000 ffff88011911fa98 ffffffff811a0109 ffff88011911fab8
   ffff88011911fab8 ffff88011911fa98 ffff880119128cc0 ffff880119128cf8
  Call Trace:
   [<lib/dump_stack.c:52>] dump_stack+0x52/0x7f
   [<kernel/locking/lockdep.c:1213>] print_circular_bug+0x129/0x160
   [<kernel/locking/lockdep.c:1840>] check_prev_add+0x13f/0x560
   [<include/linux/spinlock.h:343 mm/slub.c:1933>] ? deactivate_slab+0x511/0x550
   [<kernel/locking/lockdep.c:1945 kernel/locking/lockdep.c:2131>] validate_chain+0x6c5/0x7b0
   [<kernel/locking/lockdep.c:3182>] __lock_acquire+0x4cd/0x5a0
   [<mm/mmap.c:1552>] ? mmap_region+0x24a/0x5c0
   [<arch/x86/include/asm/current.h:14 kernel/locking/lockdep.c:3602>] lock_acquire+0x182/0x1d0
   [<fs/kernfs/file.c:487>] ? kernfs_fop_mmap+0x54/0x120
   [<kernel/locking/mutex.c:470 kernel/locking/mutex.c:571>] mutex_lock_nested+0x6a/0x510
   [<fs/kernfs/file.c:487>] ? kernfs_fop_mmap+0x54/0x120
   [<kernel/sched/core.c:2477>] ? get_parent_ip+0x11/0x50
   [<fs/kernfs/file.c:487>] ? kernfs_fop_mmap+0x54/0x120
   [<fs/kernfs/file.c:487>] kernfs_fop_mmap+0x54/0x120
   [<mm/mmap.c:1573>] mmap_region+0x310/0x5c0
   [<mm/mmap.c:1365>] do_mmap_pgoff+0x385/0x430
   [<mm/util.c:397>] ? vm_mmap_pgoff+0x6e/0xe0
   [<mm/util.c:399>] vm_mmap_pgoff+0x8f/0xe0
   [<kernel/rcu/update.c:97>] ? __rcu_read_unlock+0x44/0xb0
   [<fs/file.c:641>] ? dup_fd+0x3c0/0x3c0
   [<mm/mmap.c:1416 mm/mmap.c:1374>] SyS_mmap_pgoff+0x1b0/0x210
   [<arch/x86/kernel/sys_x86_64.c:72>] SyS_mmap+0x1d/0x20
   [<arch/x86/kernel/entry_64.S:749>] tracesys+0xdd/0xe2

Fix it by caching atomic_write_len in kernfs_open_file during open so
that it can be determined without accessing kernfs_ops in
kernfs_fop_write().  This restores the structure of kernfs_fop_write()
before 4d3773c4bb with updated @len determination logic.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
References: http://lkml.kernel.org/g/53113485.2090407@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:08:29 -08:00
Xishi Qiu
92d585ef06 numa: fix NULL pointer access and memory leak in unregister_one_node()
When doing socket hot remove, "node_devices[nid]" is set to NULL;
acpi_processor_remove()
	try_offline_node()
		unregister_one_node()

Then hot add a socket, but do not echo 1 > /sys/devices/system/cpu/cpuXX/online,
so register_one_node() will not be called, and "node_devices[nid]"
is still NULL.

If doing socket hot remove again, NULL pointer access will be happen.
unregister_one_node()
	unregister_node()

Another, we should free the memory used by "node_devices[nid]" in
unregister_one_node().

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:08:29 -08:00
Roland Dreier
aa0689b36b Revert "driver core: synchronize device shutdown"
This reverts commit 401097ea4b.  The
original changelog said:

    A patch series to make .shutdown execute asynchronously.  Some drivers's
    shutdown can take a lot of time.  The patches can help save some shutdown
    time.  The patches use Arjan's async API.

    This patch:

    synchronize all tasks submitted by .shutdown

However, I'm not able to find any evidence that any other patches from
this series were applied, nor am I able to find any async tasks that are
scheduled in a .shutdown context.

On the other hand, we see occasional hangs on shutdown that appear to be
caused by the async_synchronize_full() in device_shutdown() waiting
forever for the async probing in sd if a SCSI disk shows up at just the
wrong time — the system starts the probe, but begins shutting down and
tears down too much of the SCSI driver to finish the probe.

If we had any async shutdown tasks, I guess the right fix would be to
create a "shutdown" async domain and have device_shutdown() only wait
for that domain.  But since there apparently are no async shutdown
tasks, we can just revert the waiting.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:08:29 -08:00
Richard Cochran
88391d49ab kernfs: fix off by one error.
The hash values 0 and 1 are reserved for magic directory entries, but
the code only prevents names hashing to 0. This patch fixes the test
to also prevent hash value 1.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 22:08:29 -08:00
Johannes Thumshirn
35272754e2 iio: adc: Fix build error discovered by 0-day build bot
men_z188_adc needs to include linux/io.h. This fixes a build error
discovered by 0-day buid bot

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 21:57:17 -08:00
Alexander Usyskin
31a5ef240e mei: fix regressions caused by removing ext_msg
1. Delete cb from list before freeing it
2. Fix missed break that leads to
switch case fall-through and BUG invocation.

Regression from:
commit 6bb948c9e5
mei: get rid of ext_msg

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 21:56:21 -08:00
Paul Gortmaker
0db03f3f0c drivers/mcb: do not set default Kconfig variable to modular
Coverage builds found this build fail in ARM ebsa110_defconfig:

drivers/mcb/mcb-parse.c: In function 'chameleon_parse_cells':
drivers/mcb/mcb-parse.c:105:2: error: implicit declaration of function 'memcpy_fromio' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[2]: *** [drivers/mcb/mcb-parse.o] Error 1

A simple bisect will output this:

3764e82e51 is the first bad commit
commit 3764e82e51
Author: Johannes Thumshirn <johannes.thumshirn@men.de>
Date:   Wed Feb 26 17:29:05 2014 +0100

    drivers: Introduce MEN Chameleon Bus

The above commit used "default m" which is wrong.  New drivers
should never be globally enabled with "default y/m".  Whether
this driver makes sense to build on ARM is an independent issue.

Here we delete the "default m" line, which is the equivalent of
"default n".

Cc: Johannes Thumshirn <johannes.thumshirn@men.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 21:55:39 -08:00
Nick Davies
3cf477b56c Staging: comedi: ni_tio Fixed whitespace coding style warnings
Fixed coding style warnings in ni_tio.h which had an extra space
after the function pointer name.

Signed-off-by: Nick Davies <git@nicolasdavies.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 21:13:31 -08:00
Himangi Saraogi
fde3d28df0 staging:nokia_h4p:Replace __attribute__((packed)) by __packed
This patch fixes the checkpatch.pl warning:
WARNING: __packed is preferred over __attribute__((packed)).
As the macro: #define __packed __attribute__((packed)) is defined
in compiler-gcc.h, __attribute__((packed)) is replaced by __packed.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 20:35:16 -08:00
Himangi Saraogi
f2459201c7 staging:line6: Fix use of variable length arrays
This patch fixes the sparse warning:
drivers/staging/line6/midi.c:50:34: warning: Variable length array is used.
The size is same as the variable LINE6_FALLBACK_MAXPACKETSIZE,
so use that.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 20:35:16 -08:00
Himangi Saraogi
6afaab954f staging:rtl8821ae:btcoexist: Fix non-ANSI sparse warnings
This patch fixes the sparse warning:
drivers/staging/rtl8821ae/btcoexist/halbtcoutsrc.c:1080:41: warning: non-ANSI function declaration of function
by adding void to the parameterless function.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 20:35:15 -08:00
Himangi Saraogi
74a371a0c2 staging:rtl8192u:ieee80211: Fix smatch warning of function definition with external linkage
This patch fixes the warnings:
drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c:381:13: warning: function 'ieee80211_qurey_ShortPreambleMode' with external linkage has definition
drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c:395:1: warning: function 'ieee80211_query_HTCapShortGI' with external linkage has definition

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 20:33:49 -08:00
Himangi Saraogi
d16e05f70c staging:rtl8192u: Fix smatch warning of function definition with external linkage
This patch fixes the following smatch warning in r8192U_core.c -
drivers/staging/rtl8192u/r8192U_core.c:3539:13: warning: function 'rtl819x_watchdog_wqcallback' with external linkage has definition

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 20:33:49 -08:00
Keerthimai Janarthanan
1b67070565 staging: rts5208: Fixed line over 80 characters.
Fixes the following checkpatch warning:
WARNING: line over 80 characters.

Signed-off-by: Keerthimai Janarthanan <keerthimaipb@gmail.com>
Reviewed-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 20:31:53 -08:00
Iulia Manda
879ea7d34e Staging:vt6656: Replace some kzalloc calls with kcalloc in iwctl.c
This replacement is justified by the fact that kcalloc could prevent integer
overflow resulted from the multiplications used in kzalloc.

The semantic patch that showed this suggestion is kzalloc.cocci

Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 20:31:53 -08:00
Iulia Manda
0481dccb89 Staging:rtl8821ae: Drop memory allocation cast for kmalloc in hal_btc.c
Remove unnecessary cast for kmalloc, after running alloc_cast.cocci semantic patch.

Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Reviewed-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08 20:31:53 -08:00