linux-kernel - [PATCH -next] cgroup: simplify code in cgroup_apply

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Date:   Sat, 17 Sep 2022 16:40:39 +0800
From:   williamsukatube@....com
To:     tj@...nel.org, lizefan.x@...edance.com, hannes@...xchg.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     William Dean <williamsukatube@....com>
Subject: [PATCH -next] cgroup: simplify code in cgroup_apply_control

From: William Dean <williamsukatube@....com>

It could directly return 'cgroup_update_dfl_csses' to simplify code.

Signed-off-by: William Dean <williamsukatube@....com>
---
 kernel/cgroup/cgroup.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index e4bb5d57f4d1..1958f8bd93d6 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -3292,11 +3292,7 @@ static int cgroup_apply_control(struct cgroup *cgrp)
 	 * making the following cgroup_update_dfl_csses() properly update
 	 * css associations of all tasks in the subtree.
 	 */
-	ret = cgroup_update_dfl_csses(cgrp);
-	if (ret)
-		return ret;
-
-	return 0;
+	return cgroup_update_dfl_csses(cgrp);
 }

 /**
--
2.25.1