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authorHannes Reinecke <hare@suse.de>2017-08-11 08:53:46 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2017-08-24 22:28:53 -0400
commit8cd1ec78ca15f1016f6c3c683c21b3383b5cb966 (patch)
tree788fdf9ddc41aa2bd9278dc204798849bcf2f681 /drivers/scsi/scsi_lib.c
parentfe083323bb7ee56b69dacdd2e5d8469be95a8f12 (diff)
scsi: scsi_lib: rework scsi_internal_device_unblock_nowait()
Rework scsi_internal_device_unblock_nowait() into using a switch statement. No functional changes. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r--drivers/scsi/scsi_lib.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index f6097b89d5d3..4a295a630848 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -3073,19 +3073,24 @@ int scsi_internal_device_unblock_nowait(struct scsi_device *sdev,
* Try to transition the scsi device to SDEV_RUNNING or one of the
* offlined states and goose the device queue if successful.
*/
- if ((sdev->sdev_state == SDEV_BLOCK) ||
- (sdev->sdev_state == SDEV_TRANSPORT_OFFLINE))
+ switch (sdev->sdev_state) {
+ case SDEV_BLOCK:
+ case SDEV_TRANSPORT_OFFLINE:
sdev->sdev_state = new_state;
- else if (sdev->sdev_state == SDEV_CREATED_BLOCK) {
+ break;
+ case SDEV_CREATED_BLOCK:
if (new_state == SDEV_TRANSPORT_OFFLINE ||
new_state == SDEV_OFFLINE)
sdev->sdev_state = new_state;
else
sdev->sdev_state = SDEV_CREATED;
- } else if (sdev->sdev_state != SDEV_CANCEL &&
- sdev->sdev_state != SDEV_OFFLINE)
+ break;
+ case SDEV_CANCEL:
+ case SDEV_OFFLINE:
+ break;
+ default:
return -EINVAL;
-
+ }
scsi_start_queue(sdev);
return 0;

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