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>
This commit is contained in:
Fengguang Wu 2014-02-13 16:42:43 -05:00 committed by Tejun Heo
parent d6250ee2fa
commit 430af8ad9d

View file

@ -2171,9 +2171,7 @@ static int cgroup_add_file(struct cgroup *cgrp, struct cftype *cft)
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);
}
/**