block: Trivial fix for blk_integrity_rq()

Fail integrity check gracefully when request does not have a bio
attached (BLOCK_PC).

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Martin K. Petersen 2008-07-16 16:09:06 -04:00 committed by Linus Torvalds
commit d442cc44c0