drm/amdgpu: remove the redundant null check

[Alex Deucher]

On Fri, Sep 6, 2019 at 3:01 AM zhong jiang <zhongjiang at huawei.com> wrote:
>
> On 2019/9/5 16:38, Markus Elfring wrote:
> >>> 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?
> Yep
> > Will it be helpful to add attribution for such tools
> > to any more descriptions in your patches?
> Sometimes, I will add the description in my patches. Not always.

Applied with some minor tweaks to the commit message.

Thanks!

Alex

>
> Thanks,
> zhong jiang
> > Regards,
> > Markus
> >
> > .
> >
>
>
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