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scsi: target: pscsi: Clean up after failure in pscsi_map_sg() 

If pscsi_map_sg() fails, make sure to drop references to already allocated
bios.

Link: https://lore.kernel.org/r/20210323212431.15306-2-mwilck@suse.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Martin Wilck 2021-03-23 22:24:31 +01:00 committed by Martin K. Petersen
parent 077ce028b8
commit 36fa766faa
1 changed files with 8 additions and 0 deletions
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8
drivers/target/target_core_pscsi.c
View File

@ -938,6 +938,14 @@ new_bio:
return 0;
fail:
if (bio)
bio_put(bio);
while (req->bio) {
bio = req->bio;
req->bio = bio->bi_next;
bio_put(bio);
}
req->biotail = NULL;
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}