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scsi: target: pscsi: Clean up after failure in pscsi_map_sg()
[ Upstream commit 36fa766faa
]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -939,6 +939,14 @@ pscsi_map_sg(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
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return 0;
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fail:
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if (bio)
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bio_put(bio);
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while (req->bio) {
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bio = req->bio;
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req->bio = bio->bi_next;
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bio_put(bio);
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}
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req->biotail = NULL;
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return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
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}
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