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scsi: sd: Unlock zone in case of error in sd_setup_write_same_cmnd()

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scsi_io_init() may fail, leaving a zone of a zoned block device locked.
Fix this by properly unlocking the write same request target zone if
scsi_io_init() fails.

Signed-off-by: Damien Le Moal <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
This commit is contained in:
Damien Le Moal 2017-05-08 14:59:02 +09:00 • committed by Martin K. Petersen
commit 29f6ca6916
1 changed files with 4 additions and 0 deletions
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4
drivers/scsi/sd.c
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@ -948,6 +948,10 @@ static int sd_setup_write_same_cmnd(struct scsi_cmnd *cmd)
rq->__data_len = sdp->sector_size;
ret = scsi_init_io(cmd);
rq->__data_len = nr_bytes;
if (sd_is_zoned(sdkp) && ret != BLKPREP_OK)
sd_zbc_write_unlock_zone(cmd);
return ret;
}