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| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2011-08-25 22:36:23 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-13 02:39:28 +0100 |
| commit | 7fbd764881a5f9dc81a378293b7a74227fcc04ed (patch) | |
| tree | ee7a8ab5c5f6875b61b89d780a584ab1a139745e | |
| parent | Merge branch 'for-linus' of git://git.kernel.dk/linux-block (diff) | |
| download | linux-7fbd764881a5f9dc81a378293b7a74227fcc04ed.tar.xz linux-7fbd764881a5f9dc81a378293b7a74227fcc04ed.zip | |
[SCSI] mpt2sas: Fix mismatch in mpt2sas_base_hard_reset_handler() mutex lock-unlock
If ioc->pci_error_recovery is set, goto out in mpt2sas_base_hard_reset_handler()
leads to unlock unheld ioc->reset_in_progress_mutex.
The patch fixes the issue by jumping afer mutex_unlock() call.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_base.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index 0b2c95583660..a78036f5e1a6 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -4548,7 +4548,7 @@ mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, printk(MPT2SAS_ERR_FMT "%s: pci error recovery reset\n", ioc->name, __func__); r = 0; - goto out; + goto out_unlocked; } if (mpt2sas_fwfault_debug) @@ -4604,6 +4604,7 @@ mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); mutex_unlock(&ioc->reset_in_progress_mutex); + out_unlocked: dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name, __func__)); return r; |