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-rw-r--r--drivers/block/nvme-core.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index e5112714188f..a45700312caf 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -193,6 +193,13 @@ static int nvme_admin_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
return 0;
}
+static void nvme_admin_exit_hctx(struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx)
+{
+ struct nvme_queue *nvmeq = hctx->driver_data;
+
+ nvmeq->tags = NULL;
+}
+
static int nvme_admin_init_request(void *data, struct request *req,
unsigned int hctx_idx, unsigned int rq_idx,
unsigned int numa_node)
@@ -1606,6 +1613,7 @@ static struct blk_mq_ops nvme_mq_admin_ops = {
.queue_rq = nvme_queue_rq,
.map_queue = blk_mq_map_queue,
.init_hctx = nvme_admin_init_hctx,
+ .exit_hctx = nvme_admin_exit_hctx,
.init_request = nvme_admin_init_request,
.timeout = nvme_timeout,
};
@@ -1648,6 +1656,7 @@ static int nvme_alloc_admin_tags(struct nvme_dev *dev)
}
if (!blk_get_queue(dev->admin_q)) {
nvme_dev_remove_admin(dev);
+ dev->admin_q = NULL;
return -ENODEV;
}
} else
@@ -2734,8 +2743,10 @@ static void nvme_free_dev(struct kref *kref)
put_device(dev->device);
nvme_free_namespaces(dev);
nvme_release_instance(dev);
- blk_mq_free_tag_set(&dev->tagset);
- blk_put_queue(dev->admin_q);
+ if (dev->tagset.tags)
+ blk_mq_free_tag_set(&dev->tagset);
+ if (dev->admin_q)
+ blk_put_queue(dev->admin_q);
kfree(dev->queues);
kfree(dev->entry);
kfree(dev);
@@ -2866,6 +2877,9 @@ static int nvme_dev_start(struct nvme_dev *dev)
free_tags:
nvme_dev_remove_admin(dev);
+ blk_put_queue(dev->admin_q);
+ dev->admin_q = NULL;
+ dev->queues[0]->tags = NULL;
disable:
nvme_disable_queue(dev, 0);
nvme_dev_list_remove(dev);