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

Pull SCSI fix from James Bottomley:
 "Our final fix before the 4.12 release (hopefully).

  It's an error leg again: the fix to not bug on empty DMA transfers is
  returning the wrong code and confusing the block layer"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: return correct blkprep status code in case scsi_init_io() fails.