aacraid: Fix memory leak in aac_fib_map_free
authorRaghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Wed, 3 Feb 2016 23:06:02 +0000 (15:06 -0800)
committerMartin K. Petersen <martin.petersen@oracle.com>
Wed, 24 Feb 2016 02:27:02 +0000 (21:27 -0500)
commitf88fa79a61726ce9434df9b4aede36961f709f17
treeea3bc7bac1e76c38580b24d05db878783f22f7c1
parent5c63f7f710bdde6454d304a84146a5338962a509
aacraid: Fix memory leak in aac_fib_map_free

aac_fib_map_free() calls pci_free_consistent() without checking that
dev->hw_fib_va is not NULL and dev->max_fib_size is not zero.If they are
indeed NULL/0, this will result in a hang as pci_free_consistent() will
attempt to invalidate cache for the entire 64-bit address space
(which would take a very long time).

Fixed by adding a check to make sure that dev->hw_fib_va and
dev->max_fib_size are not NULL and 0 respectively.

Fixes: 9ad5204d6 - "[SCSI]aacraid: incorrect dma mapping mask during blinked recover or user initiated reset"
Cc: stable@vger.kernel.org
Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/aacraid/commsup.c