[security:next-lockdown 3/29] security/lockdown/lockdown.c:157:1-3: WARNING: PTR_ERR_OR_ZERO can be used

[kbuild test robot]

tree:   https://kernel.googlesource.com/pub/scm/linux/kernel/git/jmorris/linux-security.git next-lockdown
head:   05ef41e93e1a40d6b2d9846284824ec6f67fe422
commit: 80d14015a8e3109f9b5e3e39b0bc78e1c3a1f315 [3/29] security: Add a static lockdown policy LSM

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp at intel.com>


coccinelle warnings: (new ones prefixed by >>)

>> security/lockdown/lockdown.c:157:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Please review and possibly fold the followup patch.

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