blkcg: fix double free of new_blkg in blkcg_init_queue

If blkg_create fails, new_blkg passed as an argument will
be freed by blkg_create, so there is no need to free it again.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 37fe595cfd70..295e98c2c8cc 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1079,10 +1079,8 @@ int blkcg_init_queue(struct request_queue *q)
         if (preloaded)
                 radix_tree_preload_end();
 
-        if (IS_ERR(blkg)) {
-                blkg_free(new_blkg);
+        if (IS_ERR(blkg))
                 return PTR_ERR(blkg);
-        }
 
         q->root_blkg = blkg;
         q->root_rl.blkg = blkg;