[PATCH] blkcg: remove redundant code in blkcg_css_free()

[Zefan Li]

The check was needed only when we supported modular cgroup subsystem.

Signed-off-by: Zefan Li <lizefan@xxxxxxxxxx>
---
 block/blk-cgroup.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 0ac817b..92b7edd 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -814,9 +814,7 @@ static void blkcg_css_offline(struct cgroup_subsys_state *css)
 static void blkcg_css_free(struct cgroup_subsys_state *css)
 {
 	struct blkcg *blkcg = css_to_blkcg(css);
-
-	if (blkcg != &blkcg_root)
-		kfree(blkcg);
+	kfree(blkcg);
 }
 
 static struct cgroup_subsys_state *
-- 
1.9.1

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