cgroup: fix coccinelle warnings
kernel/cgroup.c:2256:1-3: WARNING: PTR_RET can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: coccinelle/api/ptr_ret.cocci
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 750d0e1..15dcae7 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2171,9 +2171,7 @@
kn = __kernfs_create_file(cgrp->kn, cgroup_file_name(cgrp, cft, name),
cgroup_file_mode(cft), 0, cft->kf_ops, cft,
NULL, false, key);
- if (IS_ERR(kn))
- return PTR_ERR(kn);
- return 0;
+ return PTR_ERR_OR_ZERO(kn);
}
/**