From f7a9945184100b531f0de3b12c617a349236dd8a Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 12 May 2019 12:42:58 -0400
Subject: no need to protect against put_user_ns(NULL)

it's a no-op

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 kernel/cgroup/cgroup.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'kernel/cgroup')

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 217cec4e22c6..bbcdd3457eb0 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -2184,8 +2184,7 @@ static int cgroup_init_fs_context(struct fs_context *fc)
 		fc->ops = &cgroup_fs_context_ops;
 	else
 		fc->ops = &cgroup1_fs_context_ops;
-	if (fc->user_ns)
-		put_user_ns(fc->user_ns);
+	put_user_ns(fc->user_ns);
 	fc->user_ns = get_user_ns(ctx->ns->user_ns);
 	fc->global = true;
 	return 0;
-- 
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