commit 00876ae85b47cdfe76aa08b1fffb27fd67425f53
author Arun Easi <arun.easi@qlogic.com> Mon Mar 25 02:21:37 2013 -0400
committer James Bottomley <JBottomley@Parallels.com> Sat Apr 06 11:30:16 2013 +0100
tree 566e67e1d86f2280aad0f2337d7b52ad2955ca9f
parent e9f4f418076f7d08a73667472b5f74a02965221d

[SCSI] qla2xxx: Fix crash during firmware dump procedure.

System crashes, in initiator mode operation, with
qla2xxx_copy_atioqueues() in stack trace when firmware dump is
attempted.

Check for atio_q_length alone does not indicate if atio_ring is
allocated, make explicit check of atio_ring to avoid the crash.

Applicable to ISP24xx, ISP25xx, ISP81xx & ISP83xx line of HBAs.

Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>