Fix trivial use-after-free. This could be last reference to bfqg.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
Fixes: 8f9bebc33dd7 ("block, bfq: access and cache blkg data only when safe")
---
block/bfq-cgroup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 58c6efa9f9a9..9fe5952d117d 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -275,9 +275,9 @@ static void bfqg_and_blkg_get(struct bfq_group *bfqg)
void bfqg_and_blkg_put(struct bfq_group *bfqg)
{
- bfqg_put(bfqg);
-
blkg_put(bfqg_to_blkg(bfqg));
+
+ bfqg_put(bfqg);
}
/* @stats = 0 */
