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Commit 9e866774 authored by Matthew Wilcox's avatar Matthew Wilcox
Browse files

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: default avatarMatthew Wilcox <matthew.r.wilcox@intel.com>
Reported-by: default avatarVishal Verma <vishal.l.verma@intel.com>
parent cd58ad7d

drivers/block/nvme.c

+19 −9
Original line number Diff line number Diff line
@@ -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;
@@ -1012,15 +1017,20 @@ 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");