linux-kernel - [PATCH -next] cgroup: avoid invalid loop in cgroup_no

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Date: Fri, 19 Apr 2024 08:53:16 +0000
From: Xiu Jianfeng <xiujianfeng@...wei.com>
To: <tj@...nel.org>, <lizefan.x@...edance.com>, <hannes@...xchg.org>
CC: <cgroups@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] cgroup: avoid invalid loop in cgroup_no_v1()

We should break the for_each_subsys loop after the token matches
the name of subsys and cgroup_no_v1_mask is set.

Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>
---
 kernel/cgroup/cgroup-v1.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c
index 520a11cb12f4..b9dbf6bf2779 100644
--- a/kernel/cgroup/cgroup-v1.c
+++ b/kernel/cgroup/cgroup-v1.c
@@ -1335,6 +1335,7 @@ static int __init cgroup_no_v1(char *str)
 				continue;
 
 			cgroup_no_v1_mask |= 1 << i;
+			break;
 		}
 	}
 	return 1;
-- 
2.34.1