storvsc: Set the SRB flags correctly when no data transfer is needed

Set the SRB flags correctly when there is no data transfer.  Without this
change some IHV drivers will fail valid commands such as TEST_UNIT_READY.

Cc: <stable@vger.kernel.org>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index d9dad90..3c6584f 100644 (file)
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1600,8 +1600,7 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd)
                break;
        default:
                vm_srb->data_in = UNKNOWN_TYPE;
-               vm_srb->win8_extension.srb_flags |= (SRB_FLAGS_DATA_IN |
-                                                    SRB_FLAGS_DATA_OUT);
+               vm_srb->win8_extension.srb_flags |= SRB_FLAGS_NO_DATA_TRANSFER;
                break;
        }