diff options
| author | Christoph Hellwig <hch@lst.de> | 2015-10-16 07:58:31 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-11-24 15:24:05 -0700 |
| commit | bf508e910b02a6107a5aa054e03c6fc8a65dae1e (patch) | |
| tree | e019ffb504f6cdec7c024c8704d0e69231494332 | |
| parent | c5c9f25b98a568451d665afe4aeefe17bf9f2995 (diff) | |
| download | linux-bf508e910b02a6107a5aa054e03c6fc8a65dae1e.tar.gz linux-bf508e910b02a6107a5aa054e03c6fc8a65dae1e.tar.bz2 linux-bf508e910b02a6107a5aa054e03c6fc8a65dae1e.zip | |
nvme: add missing unmaps in nvme_queue_rq
When we fail various metadata related operations in nvme_queue_rq we
need to unmap the data SGL.
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
| -rw-r--r-- | drivers/nvme/host/pci.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index d9d6229e9f3f..f3b53af789ef 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -896,19 +896,28 @@ static int nvme_queue_rq(struct blk_mq_hw_ctx *hctx, goto retry_cmd; } if (blk_integrity_rq(req)) { - if (blk_rq_count_integrity_sg(req->q, req->bio) != 1) + if (blk_rq_count_integrity_sg(req->q, req->bio) != 1) { + dma_unmap_sg(dev->dev, iod->sg, iod->nents, + dma_dir); goto error_cmd; + } sg_init_table(iod->meta_sg, 1); if (blk_rq_map_integrity_sg( - req->q, req->bio, iod->meta_sg) != 1) + req->q, req->bio, iod->meta_sg) != 1) { + dma_unmap_sg(dev->dev, iod->sg, iod->nents, + dma_dir); goto error_cmd; + } if (rq_data_dir(req)) nvme_dif_remap(req, nvme_dif_prep); - if (!dma_map_sg(nvmeq->q_dmadev, iod->meta_sg, 1, dma_dir)) + if (!dma_map_sg(nvmeq->q_dmadev, iod->meta_sg, 1, dma_dir)) { + dma_unmap_sg(dev->dev, iod->sg, iod->nents, + dma_dir); goto error_cmd; + } } } |