[PATCH] drm/gem-cma-helper: Change the level of the allocation failure message

[Eric Anholt]

Boris Brezillon <boris.brezillon at free-electrons.com> writes:

> drm_gem_cma_create() prints an error message when dma_alloc_wc() fails to
> allocate the amount of memory we requested. This can lead to annoying
> error messages when CMA is only one possible source of memory for the BO
> allocation.
>
> Turn this error message into a debug one and add a __must_check specifier
> to make sure all callers are checking the return value.
>
> Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>

The __must_check seems unnecessary to me -- you're definitely going to
be doing something with the return value, because otherwise why did you
call the object allocate function?

That said, thanks for cleaning up the error message.
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