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cgroup: fix coccinelle warnings
authorFengguang Wu <fengguang.wu@intel.com>
Thu, 13 Feb 2014 21:42:43 +0000 (16:42 -0500)
committerTejun Heo <tj@kernel.org>
Thu, 13 Feb 2014 21:42:45 +0000 (16:42 -0500)
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>

No differences found
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