[ Upstream commit 41de54c64811bf087c8464fdeb43c6ad8be2686b ]
If blk_mq_init_allocated_queue() fails, make sure to free the poll
stat callback struct allocated.
Signed-off-by: Jes Sorensen <jsoren...@fb.com>
Signed-off-by: Jens Axboe <ax...@kernel.dk>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
block/blk-mq.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 11efca3534ad..00b826399228 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2846,7 +2846,7 @@ struct request_queue *blk_mq_init_allocated_queue(struct
blk_mq_tag_set *set,
goto err_exit;
if (blk_mq_alloc_ctxs(q))
- goto err_exit;
+ goto err_poll;
/* init q->mq_kobj and sw queues' kobjects */
blk_mq_sysfs_init(q);
@@ -2907,6 +2907,9 @@ struct request_queue *blk_mq_init_allocated_queue(struct
blk_mq_tag_set *set,
kfree(q->queue_hw_ctx);
err_sys_init:
blk_mq_sysfs_deinit(q);
+err_poll:
+ blk_stat_free_callback(q->poll_cb);
+ q->poll_cb = NULL;
err_exit:
q->mq_ops = NULL;
return ERR_PTR(-ENOMEM);
--
2.20.1
