[PATCH v7 18/34] platform: video-mux: include temporary mmio-mux support

[kbuild test robot]

Hi Philipp,

[auto build test WARNING on linuxtv-media/master]
[also build test WARNING on v4.12-rc2 next-20170525]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Steve-Longerbeam/i-MX-Media-Driver/20170525-135051
base:   git://linuxtv.org/media_tree.git master


coccinelle warnings: (new ones prefixed by >>)

>> drivers/media/platform/video-mux.c:246:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Please review and possibly fold the followup patch.

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