Commit bf508e91 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe

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: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarKeith Busch <keith.busch@intel.com>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent c5c9f25b
......@@ -896,21 +896,30 @@ 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;
}
}
}
nvme_set_info(cmd, iod, req_completion);
spin_lock_irq(&nvmeq->q_lock);
......
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