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authorAlexey Khoroshilov <khoroshilov@ispras.ru>2011-08-26 00:36:23 +0400
committerJames Bottomley <JBottomley@Parallels.com>2012-02-12 19:39:28 -0600
commit7fbd764881a5f9dc81a378293b7a74227fcc04ed (patch)
treeee7a8ab5c5f6875b61b89d780a584ab1a139745e
parent3ec1e88b33a3bdd852ce8e014052acec7a9da8b5 (diff)
[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.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 0b2c955..a78036f 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;