drm/amdgpu: remove the redundant null check

Markus Elfring Markus.Elfring at web.de
Thu Sep 5 08:38:48 UTC 2019

>> Were any source code analysis tools involved for finding
>> these update candidates?
> With the help of Coccinelle. You can find out some example in scripts/coccinelle/.

Thanks for such background information.
Was the script “ifnullfree.cocci” applied here?

Will it be helpful to add attribution for such tools
to any more descriptions in your patches?


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