Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of minor (and safe changes) that didn't make the initial
  pull request plus some bug fixes"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla2xxx: Mask off Scope bits in retry delay
  scsi: qla2xxx: Fix crash on qla2x00_mailbox_command
  scsi: aic7xxx: aic79xx: fix potential null pointer dereference on ahd
  scsi: mpt3sas: Add an I/O barrier
  scsi: qla2xxx: Fix setting lower transfer speed if GPSC fails
  scsi: hpsa: disable device during shutdown
  scsi: sd_zbc: Fix sd_zbc_check_zone_size() error path
  scsi: aacraid: remove bogus GFP_DMA32 specifies

drivers/scsi/sd_zbc.c

@@ -442,7 +442,7 @@ static s64 sd_zbc_check_zone_size(struct scsi_disk *sdkp)
 			} else if (this_zone_blocks != zone_blocks &&
 				   (block + this_zone_blocks < sdkp->capacity
 				    || this_zone_blocks > zone_blocks)) {
-				this_zone_blocks = 0;
+				zone_blocks = 0;
 				goto out;
 			}
 			block += this_zone_blocks;