[PATCH 4.14 110/165] scsi: core: return BLK_STS_OK for DID_OK in __scsi_error_from_host_byte()

From: Greg Kroah-Hartman
Date: Thu May 24 2018 - 06:04:35 EST


4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Hannes Reinecke <hare@xxxxxxx>

[ Upstream commit e39a97353e5378eb46bf01679799c5704d397f32 ]

When converting __scsi_error_from_host_byte() to BLK_STS error codes the
case DID_OK was forgotten, resulting in it always returning an error.

Fixes: 2a842acab109 ("block: introduce new block status code type")
Cc: Doug Gilbert <dgilbert@xxxxxxxxxxxx>
Signed-off-by: Hannes Reinecke <hare@xxxxxxxx>
Reviewed-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/scsi_lib.c | 2 ++
1 file changed, 2 insertions(+)

--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -720,6 +720,8 @@ static blk_status_t __scsi_error_from_ho
int result)
{
switch (host_byte(result)) {
+ case DID_OK:
+ return BLK_STS_OK;
case DID_TRANSPORT_FAILFAST:
return BLK_STS_TRANSPORT;
case DID_TARGET_FAILURE: