[media] s5p-mfc: Adjust a null pointer check in four functions

[SF Markus Elfring]

>> Date: Fri, 8 Sep 2017 22:37:00 +0200
>> MIME-Version: 1.0
>> Content-Type: text/plain; charset=UTF-8
>> Content-Transfer-Encoding: 8bit
> 
> Can you resend with that 4 lines removed?

* Do you care to preserve an information like the author date?

* Would you like to support special characters in the commit message?


> Are you using git send-email for sending patches?

Not so far.

Regards,
Markus