[PATCH] ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM

[Pierre-Louis Bossart]

>> From: Ammar Faizi <ammarfaizi2 at gnuweeb.org>
>>
>> Do not call snd_dma_free_pages() when snd_dma_alloc_pages() returns
>> -ENOMEM because it leads to a NULL pointer dereference bug.
> 
> Reviewed-by: Peter Ujfalusi <peter.ujfalusi at linux.intel.com>

Thanks for this patch. looks good and tested by our CI, so

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>