[PATCH] powerpc/iommu/debug: fix ifnullfree.cocci warnings

[Michael Ellerman]

On Fri, 19 Mar 2021 07:44:41 +0800, kernel test robot wrote:
> arch/powerpc/kernel/iommu.c:76:2-16: WARNING: NULL check before some freeing functions is not needed.
> 
>  NULL check before some freeing functions is not needed.
> 
>  Based on checkpatch warning
>  "kfree(NULL) is safe this check is probably not required"
>  and kfreeaddr.cocci by Julia Lawall.
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/iommu/debug: fix ifnullfree.cocci warnings
      https://git.kernel.org/powerpc/c/bbbe563f8490958861777d98871e16960163ea1b

cheers