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NVMe: blk_mq_alloc_request() returns error pointers

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We recently converted this to blk_mq but the error checks have to be
updated to check for IS_ERR() instead of NULL.

Fixes: a4aea5623d ('NVMe: Convert to blk-mq')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Dan Carpenter 2014-11-05 23:39:09 +03:00 committed by Jens Axboe
parent a4aea5623d
commit 9f173b3384
1 changed files with 6 additions and 6 deletions
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12
drivers/block/nvme-core.c
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@ -826,8 +826,8 @@ static int nvme_submit_async_admin_req(struct nvme_dev *dev)
struct request *req;
req = blk_mq_alloc_request(dev->admin_q, WRITE, GFP_KERNEL, false);
if (!req)
return -ENOMEM;
if (IS_ERR(req))
return PTR_ERR(req);
cmd_info = blk_mq_rq_to_pdu(req);
nvme_set_info(cmd_info, req, async_req_completion);
@ -848,8 +848,8 @@ static int nvme_submit_admin_async_cmd(struct nvme_dev *dev,
struct nvme_cmd_info *cmd_rq;
req = blk_mq_alloc_request(dev->admin_q, WRITE, GFP_KERNEL, false);
if (!req)
return -ENOMEM;
if (IS_ERR(req))
return PTR_ERR(req);
req->timeout = timeout;
cmd_rq = blk_mq_rq_to_pdu(req);
@ -1026,7 +1026,7 @@ static void nvme_abort_req(struct request *req)
abort_req = blk_mq_alloc_request(dev->admin_q, WRITE, GFP_ATOMIC,
false);
if (!abort_req)
if (IS_ERR(abort_req))
return;
abort_cmd = blk_mq_rq_to_pdu(abort_req);
@ -1884,7 +1884,7 @@ static struct nvme_ns *nvme_alloc_ns(struct nvme_dev *dev, unsigned nsid,
if (!ns)
return NULL;
ns->queue = blk_mq_init_queue(&dev->tagset);
if (!ns->queue)
if (IS_ERR(ns->queue))
goto out_free_ns;
queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, ns->queue);
queue_flag_set_unlocked(QUEUE_FLAG_NONROT, ns->queue);