block: Avoid that blk_exit_rl() triggers a use-after-free

[mirror_ubuntu-artful-kernel.git] / block / blk-cgroup.c

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 7c2947128f5813a677a0361eddcd277b5946d03e..0480892e97e501807a7f14f843eb549719f33c81 100644 (file)
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -74,7 +74,7 @@ static void blkg_free(struct blkcg_gq *blkg)
                        blkcg_policy[i]->pd_free_fn(blkg->pd[i]);
 
        if (blkg->blkcg != &blkcg_root)
-               blk_exit_rl(&blkg->rl);
+               blk_exit_rl(blkg->q, &blkg->rl);
 
        blkg_rwstat_exit(&blkg->stat_ios);
        blkg_rwstat_exit(&blkg->stat_bytes);