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authorMatthew Wilcox <matthew.r.wilcox@intel.com>2011-05-11 13:30:59 -0700
committerMatthew Wilcox <matthew.r.wilcox@intel.com>2011-11-04 15:53:03 -0400
commit6f0f54499f2edf7e25410cdd99e6f030f3485fd1 (patch)
tree805003a9c7fa87e77fb41a50f308ad178688f79c /drivers/block/nvme.c
parentbe5e09484078e95af20acb13e215cd8aec705893 (diff)
NVMe: Return real error from nvme_create_queue
nvme_setup_io_queues() was assuming that a NULL return from nvme_create_queue() was an out-of-memory error. That's not necessarily true; the adapter might return -EIO, for example. Change the calling convention to return an ERR_PTR on failure instead of NULL. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Diffstat (limited to 'drivers/block/nvme.c')
-rw-r--r--drivers/block/nvme.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c
index d1cd91becdb..843edbd79c5 100644
--- a/drivers/block/nvme.c
+++ b/drivers/block/nvme.c
@@ -892,7 +892,7 @@ static __devinit struct nvme_queue *nvme_create_queue(struct nvme_dev *dev,
struct nvme_queue *nvmeq = nvme_alloc_queue(dev, qid, cq_size, vector);
if (!nvmeq)
- return NULL;
+ return ERR_PTR(-ENOMEM);
result = adapter_alloc_cq(dev, qid, nvmeq);
if (result < 0)
@@ -918,7 +918,7 @@ static __devinit struct nvme_queue *nvme_create_queue(struct nvme_dev *dev,
dma_free_coherent(nvmeq->q_dmadev, SQ_SIZE(nvmeq->q_depth),
nvmeq->sq_cmds, nvmeq->sq_dma_addr);
kfree(nvmeq);
- return NULL;
+ return ERR_PTR(result);
}
static int __devinit nvme_configure_admin_queue(struct nvme_dev *dev)
@@ -1421,8 +1421,8 @@ static int __devinit nvme_setup_io_queues(struct nvme_dev *dev)
for (i = 0; i < nr_io_queues; i++) {
dev->queues[i + 1] = nvme_create_queue(dev, i + 1,
NVME_Q_DEPTH, i);
- if (!dev->queues[i + 1])
- return -ENOMEM;
+ if (IS_ERR(dev->queues[i + 1]))
+ return PTR_ERR(dev->queues[i + 1]);
dev->queue_count++;
}