[PATCH] arm64/dma-mapping: Fix null-pointer check

[Olav Haugan]

On 17-06-10 23:03:54, Russell King - ARM Linux wrote:
> On Sat, Jun 10, 2017 at 12:41:10PM -0700, Olav Haugan wrote:
> > @@ -149,6 +140,11 @@ static void *__dma_alloc(struct device *dev, size_t size,
> >  	bool coherent = is_device_dma_coherent(dev);
>                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 
> This re-introduces an instance that you say you're getting rid of...
> 

The ARM64 version of is_device_dma_coherent() checks for !dev
already...But anyway I will completely remove the !dev checks in the
alloc/free functions since as Catalin pointed out it is coverted
elsewhere.

-- 
.Olav

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