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| author | Helge Deller <deller@gmx.de> | 2007-03-16 00:59:29 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dtor@insightbb.com> | 2007-03-16 00:59:29 -0400 |
| commit | 9575499dfebc0f0fbbf122223f02e9e92630661d (patch) | |
| tree | d43f958bec192f127907ba393762a0a4728fea4c /include/linux/hp_sdc.h | |
| parent | 5a90e5bca96696f1daa0bb0a9db299eb40241ada (diff) | |
| download | kernel-common-9575499dfebc0f0fbbf122223f02e9e92630661d.tar.gz kernel-common-9575499dfebc0f0fbbf122223f02e9e92630661d.tar.bz2 kernel-common-9575499dfebc0f0fbbf122223f02e9e92630661d.zip | |
Input: HIL - fix rwlock recursion bug
The following bug happens when insmoding hp_sdc_mlc.ko:
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
BUG: rwlock recursion on CPU#0, hotplug/1814, 00854734
Backtrace:
[<10267560>] _raw_write_lock+0x50/0x88
[<10104008>] _write_lock_irqsave+0x14/0x24
[<008537d4>] hp_sdc_mlc_out+0x38/0x25c [hp_sdc_mlc]
[<0084ebd8>] hilse_donode+0x308/0x470 [hil_mlc]
[<0084ed80>] hil_mlcs_process+0x40/0x6c [hil_mlc]
[<10130f80>] tasklet_action+0x78/0xb8
[<10130cec>] __do_softirq+0x60/0xcc
[<1010428c>] __lock_text_end+0x38/0x48
[<10108348>] do_cpu_irq_mask+0xf0/0x11c
[<1010b068>] intr_return+0x0/0xc
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'include/linux/hp_sdc.h')
| -rw-r--r-- | include/linux/hp_sdc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/hp_sdc.h b/include/linux/hp_sdc.h index debd71515312..9db3d454887f 100644 --- a/include/linux/hp_sdc.h +++ b/include/linux/hp_sdc.h @@ -71,6 +71,7 @@ typedef struct { struct semaphore *semaphore; /* Semaphore to sleep on. */ } act; } hp_sdc_transaction; +int __hp_sdc_enqueue_transaction(hp_sdc_transaction *this); int hp_sdc_enqueue_transaction(hp_sdc_transaction *this); int hp_sdc_dequeue_transaction(hp_sdc_transaction *this); |