drivers/rtc/rtc-pcf8523.c:361:1-3: WARNING: PTR_ERR_OR_ZERO can be used

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   3a562aee727a7bfbb3a37b1aa934118397dad701
commit: 93966243cf90c055d89b5ebfbb8dee0f9ac6b0a2 rtc: pcf8523: Remove struct pcf8523
date:   5 weeks ago

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>


coccinelle warnings: (new ones prefixed by >>)

>> drivers/rtc/rtc-pcf8523.c:361:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Please review and possibly fold the followup patch.

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