scsi: aacraid: Fix a potential spinlock double unlock bug
authorRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Thu, 16 Feb 2017 20:51:23 +0000 (12:51 -0800)
committerMartin K. Petersen <martin.petersen@oracle.com>
Wed, 22 Feb 2017 23:41:42 +0000 (18:41 -0500)
commitd844752e1801099f92c178845f56412861a2b4af
tree56685bd1e4aa281196699cf2ccad004832af976c
parent09624645e1e85df8d68b04de6e0607d696268333
scsi: aacraid: Fix a potential spinlock double unlock bug

The driver does not unlock the reply  queue spin lock after handling SMART
adapter events. Instead it might attempt to unlock an already unlocked
spin lock.

Fixed by making sure the driver locks the spin lock before freeing it.

Thank you dan for finding this issue out.

Fixes: 6223a39fe6fbbeef (scsi: aacraid: Added support for hotplug)
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/aacraid/commsup.c