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scsi: core: Modify the scsi_send_eh_cmnd() return value for the SDEV_BLOCK case

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The comment above scsi_send_eh_cmnd() says: "Returns SUCCESS or FAILED or
NEEDS_RETRY". This patch makes all values returned by scsi_send_eh_cmnd()
match the documentation of this function. This change does not affect the
behavior of scsi_eh_tur() nor of scsi_eh_try_stu() nor of the
scsi_request_sense() callers.

See also commit bbe9fb0d04 ("scsi: Avoid that .queuecommand() gets called
for a blocked SCSI device"; v5.3).

Link: https://lore.kernel.org/r/20210415220826.29438-5-bvanassche@acm.org
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Bart Van Assche 2021-04-15 15:08:10 -07:00 committed by Martin K. Petersen
parent 0d2810cd62
commit 280e91b026
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/scsi_error.c
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@ -1109,7 +1109,7 @@ retry:
if (sdev->sdev_state != SDEV_BLOCK) if (sdev->sdev_state != SDEV_BLOCK)
rtn = shost->hostt->queuecommand(shost, scmd); rtn = shost->hostt->queuecommand(shost, scmd);
else else
rtn = SCSI_MLQUEUE_DEVICE_BUSY; rtn = FAILED;
mutex_unlock(&sdev->state_mutex); mutex_unlock(&sdev->state_mutex);
if (rtn) { if (rtn) {