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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>
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1 changed files with 1 additions and 3 deletions
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@ -2171,9 +2171,7 @@ static int cgroup_add_file(struct cgroup *cgrp, struct cftype *cft)
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kn = __kernfs_create_file(cgrp->kn, cgroup_file_name(cgrp, cft, name),
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cgroup_file_mode(cft), 0, cft->kf_ops, cft,
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NULL, false, key);
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if (IS_ERR(kn))
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return PTR_ERR(kn);
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return 0;
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return PTR_ERR_OR_ZERO(kn);
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}
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/**
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