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Subject[PATCH] cgroup: remove unneeded return value of cgroup_rm_cftypes_locked()
Date
The return value of cgroup_rm_cftypes_locked() is always 0. So remove
it to simplify the code. No functional change intended.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
kernel/cgroup/cgroup.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index bfe3cd8ccf36..b0d98542eea2 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -4320,14 +4320,13 @@ static int cgroup_init_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
return ret;
}

-static int cgroup_rm_cftypes_locked(struct cftype *cfts)
+static void cgroup_rm_cftypes_locked(struct cftype *cfts)
{
lockdep_assert_held(&cgroup_mutex);

list_del(&cfts->node);
cgroup_apply_cftypes(cfts, false);
cgroup_exit_cftypes(cfts);
- return 0;
}

/**
@@ -4343,8 +4342,6 @@ static int cgroup_rm_cftypes_locked(struct cftype *cfts)
*/
int cgroup_rm_cftypes(struct cftype *cfts)
{
- int ret;
-
if (!cfts || cfts[0].name[0] == '\0')
return 0;

@@ -4352,9 +4349,9 @@ int cgroup_rm_cftypes(struct cftype *cfts)
return -ENOENT;

cgroup_lock();
- ret = cgroup_rm_cftypes_locked(cfts);
+ cgroup_rm_cftypes_locked(cfts);
cgroup_unlock();
- return ret;
+ return 0;
}

/**
--
2.33.0
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