From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Wed, 16 Mar 2016 10:45:10 +0300
> There were two issues here:
> 1) dma_mapping_error() return true/false but we want to return -ENOMEM
> 2) If dmaengine_prep_slave_sg() failed then "err" wasn't set but
> presumably that should be -ENOMEM as well.
>
> I changed the success path to "return 0;" instead of "return ret;" for
> clarity.
>
> Fixes: 94fe8c683cea ('ks8842: Support DMA when accessed via timberdale')
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Applied.
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