diff options
| author | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2012-08-03 13:55:56 -0400 |
|---|---|---|
| committer | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2012-08-03 13:55:56 -0400 |
| commit | 9e866774aab5d2654b0fa8f97890f68913f05700 (patch) | |
| tree | a971538c8e58a72f9e14c6ba89b33bf7ab737220 /drivers/block | |
| parent | cd58ad7d188c643cf572b038909c2f7dd96fdafe (diff) | |
NVMe: Free admin queue memory on initialisation failure
If the adapter fails initialisation, the memory allocated for the
admin queue may not be freed. Split the memory freeing part of
nvme_free_queue() into nvme_free_queue_mem() and call it in the case of
initialisation failure.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reported-by: Vishal Verma <vishal.l.verma@intel.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/nvme.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c index 3278fbdb8dc0..214037055e2a 100644 --- a/drivers/block/nvme.c +++ b/drivers/block/nvme.c @@ -868,6 +868,15 @@ static int nvme_set_features(struct nvme_dev *dev, unsigned fid, return nvme_submit_admin_cmd(dev, &c, result); } +static void nvme_free_queue_mem(struct nvme_queue *nvmeq) +{ + dma_free_coherent(nvmeq->q_dmadev, CQ_SIZE(nvmeq->q_depth), + (void *)nvmeq->cqes, nvmeq->cq_dma_addr); + dma_free_coherent(nvmeq->q_dmadev, SQ_SIZE(nvmeq->q_depth), + nvmeq->sq_cmds, nvmeq->sq_dma_addr); + kfree(nvmeq); +} + static void nvme_free_queue(struct nvme_dev *dev, int qid) { struct nvme_queue *nvmeq = dev->queues[qid]; @@ -882,11 +891,7 @@ static void nvme_free_queue(struct nvme_dev *dev, int qid) adapter_delete_cq(dev, qid); } - dma_free_coherent(nvmeq->q_dmadev, CQ_SIZE(nvmeq->q_depth), - (void *)nvmeq->cqes, nvmeq->cq_dma_addr); - dma_free_coherent(nvmeq->q_dmadev, SQ_SIZE(nvmeq->q_depth), - nvmeq->sq_cmds, nvmeq->sq_dma_addr); - kfree(nvmeq); + nvme_free_queue_mem(nvmeq); } static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid, @@ -982,7 +987,7 @@ static __devinit struct nvme_queue *nvme_create_queue(struct nvme_dev *dev, static int __devinit nvme_configure_admin_queue(struct nvme_dev *dev) { - int result; + int result = 0; u32 aqa; u64 cap; unsigned long timeout; @@ -1012,17 +1017,22 @@ static int __devinit nvme_configure_admin_queue(struct nvme_dev *dev) timeout = ((NVME_CAP_TIMEOUT(cap) + 1) * HZ / 2) + jiffies; dev->db_stride = NVME_CAP_STRIDE(cap); - while (!(readl(&dev->bar->csts) & NVME_CSTS_RDY)) { + while (!result && !(readl(&dev->bar->csts) & NVME_CSTS_RDY)) { msleep(100); if (fatal_signal_pending(current)) - return -EINTR; + result = -EINTR; if (time_after(jiffies, timeout)) { dev_err(&dev->pci_dev->dev, "Device not ready; aborting initialisation\n"); - return -ENODEV; + result = -ENODEV; } } + if (result) { + nvme_free_queue_mem(nvmeq); + return result; + } + result = queue_request_irq(dev, nvmeq, "nvme admin"); dev->queues[0] = nvmeq; return result; |