[ 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 jsorensen@fb.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@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);