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nvmet-loop: fix possible leakage during error flow

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During nvme_loop_queue_rq error flow, one must call nvme_cleanup_cmd since
it's symmetric to nvme_setup_cmd.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Max Gurtovoy 2019-10-13 19:57:37 +03:00 committed by Keith Busch
parent ac1c4e1885
commit 5812d04c4c
1 changed files with 3 additions and 1 deletions
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4
drivers/nvme/target/loop.c
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@ -157,8 +157,10 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
iod->sg_table.sgl = iod->first_sgl;
if (sg_alloc_table_chained(&iod->sg_table,
blk_rq_nr_phys_segments(req),
iod->sg_table.sgl, SG_CHUNK_SIZE))
iod->sg_table.sgl, SG_CHUNK_SIZE)) {
nvme_cleanup_cmd(req);
return BLK_STS_RESOURCE;
}
iod->req.sg = iod->sg_table.sgl;
iod->req.sg_cnt = blk_rq_map_sg(req->q, req, iod->sg_table.sgl);