[drm:drm-syncobj-sem 3/8] drivers/dma-buf/sync_file.c:36:1-3: WARNING: PTR_ERR_OR_ZERO can be used

[kbuild test robot]

tree:   git://people.freedesktop.org/~airlied/linux.git drm-syncobj-sem
head:   faf022804be516663a33f620536b006a56d59ee4
commit: 8281fe367426f82485f68767c5c8c7106685e9a9 [3/8] sync_file: split out fence_file base class from sync_file.


coccinelle warnings: (new ones prefixed by >>)

>> drivers/dma-buf/sync_file.c:36:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Please review and possibly fold the followup patch.

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation