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Cong Wang f581a0dd74 wl1251: add a missing spin_lock_init()
wl1251: add a missing spin_lock_init()

This fixes the following kernel warning:

 [ 5668.771453] BUG: spinlock bad magic on CPU#0, kworker/u2:3/9745
 [ 5668.771850]  lock: 0xce63ef20, .magic: 00000000, .owner: <none>/-1,
 .owner_cpu: 0
 [ 5668.772277] CPU: 0 PID: 9745 Comm: kworker/u2:3 Tainted: G        W
 4.12.0-03002-gec979a4-dirty #40
 [ 5668.772796] Hardware name: Nokia RX-51 board
 [ 5668.773071] Workqueue: phy1 wl1251_irq_work
 [ 5668.773345] [<c010c9e4>] (unwind_backtrace) from [<c010a274>]
 (show_stack+0x10/0x14)
 [ 5668.773803] [<c010a274>] (show_stack) from [<c01545a4>]
 (do_raw_spin_lock+0x6c/0xa0)
 [ 5668.774230] [<c01545a4>] (do_raw_spin_lock) from [<c06ca578>]
 (_raw_spin_lock_irqsave+0x10/0x18)
 [ 5668.774658] [<c06ca578>] (_raw_spin_lock_irqsave) from [<c048c010>]
 (wl1251_op_tx+0x38/0x5c)
 [ 5668.775115] [<c048c010>] (wl1251_op_tx) from [<c06a12e8>]
 (ieee80211_tx_frags+0x188/0x1c0)
 [ 5668.775543] [<c06a12e8>] (ieee80211_tx_frags) from [<c06a138c>]
 (__ieee80211_tx+0x6c/0x130)
 [ 5668.775970] [<c06a138c>] (__ieee80211_tx) from [<c06a3dbc>]
 (ieee80211_tx+0xdc/0x104)
 [ 5668.776367] [<c06a3dbc>] (ieee80211_tx) from [<c06a4af0>]
 (__ieee80211_subif_start_xmit+0x454/0x8c8)
 [ 5668.776824] [<c06a4af0>] (__ieee80211_subif_start_xmit) from
 [<c06a4f94>] (ieee80211_subif_start_xmit+0x30/0x2fc)
 [ 5668.777343] [<c06a4f94>] (ieee80211_subif_start_xmit) from
 [<c0578848>] (dev_hard_start_xmit+0x80/0x118)
...

    by adding the missing spin_lock_init().

Reported-by: Pavel Machek <pavel@ucw.cz>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-31 13:11:15 -07:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2017-08-21 14:07:48 -07:00
block blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL 2017-08-18 08:08:14 -06:00
certs modsign: add markers to endif-statements in certs/Makefile 2017-07-14 11:01:37 +10:00
crypto crypto: authencesn - Fix digest_null crash 2017-07-18 17:01:11 +08:00
Documentation Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-21 13:16:27 -07:00
drivers wl1251: add a missing spin_lock_init() 2017-08-31 13:11:15 -07:00
firmware firmware/Makefile: force recompilation if makefile changes 2017-05-08 17:15:10 -07:00
fs Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-08-20 09:36:52 -07:00
include net/mlx5: Remove the flag MLX5_INTERFACE_STATE_SHUTDOWN 2017-08-30 21:20:43 +03:00
init random: do not ignore early device randomness 2017-07-12 16:26:00 -07:00
ipc ipc: add missing container_of()s for randstruct 2017-08-02 17:16:12 -07:00
kernel bpf: fix map value attribute for hash of maps 2017-08-22 16:32:02 -07:00
lib kernel/watchdog: Prevent false positives with turbo modes 2017-08-18 12:35:02 +02:00
mm Sanitize 'move_pages()' permission checks 2017-08-20 13:26:27 -07:00
net kcm: do not attach PF_KCM sockets to avoid deadlock 2017-08-30 15:55:10 -07:00
samples samples/bpf: fix bpf tunnel cleanup 2017-07-31 22:02:47 -07:00
scripts parse-maintainers: Move matching sections from MAINTAINERS 2017-08-08 11:16:14 -07:00
security Now that IPC and other changes have landed, enable manual markings for 2017-07-19 08:55:18 -07:00
sound ALSA: emu10k1: Fix forgotten user-copy conversion in init code 2017-08-18 10:59:02 +02:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-21 13:16:27 -07:00
usr ramfs: clarify help text that compression applies to ramfs as well as legacy ramdisk. 2017-07-06 16:24:30 -07:00
virt KVM/ARM Fixes for v4.13-rc4 2017-08-03 17:59:58 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: Add support to generate LLVM assembly files 2017-04-25 08:13:52 +09:00
.mailmap power supply and reset changes for the v4.12 series (part 2) 2017-05-12 12:02:21 -07:00
COPYING
CREDITS avr32: remove support for AVR32 architecture 2017-05-01 09:27:15 +02:00
Kbuild kbuild: Consolidate header generation from ASM offset information 2017-04-13 05:43:37 +09:00
Kconfig
MAINTAINERS Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-08-20 09:07:56 -07:00
Makefile Linux 4.13-rc6 2017-08-20 14:13:52 -07:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.