[PATCH] spi: add null check before pointer dereference

[Gustavo A. R. Silva]

Hi Andi,

Quoting Andi Shyti <andi.shyti at samsung.com>:

> Hi Gustavo,
>
>>  	desc = dmaengine_prep_slave_sg(dma->ch, sgt->sgl, sgt->nents,
>>  				       dma->direction, DMA_PREP_INTERRUPT);
>>
>> +	if (!desc) {
>> +		dev_err(&sdd->master->dev,
>> +			"%s:dmaengine_prep_slave_sg Failed\n", __func__);
>> +		return;
>> +	}
>> +
>
> I'm sorry, I would nack this patch for now. There was a smilar I
> sent before, but, as Krzysztof said, this needs more testing and
> a proper solution.
>

Yeah, I get it.

> That's anyway in my todo list.
>

That's great.

> Thanks,
> Andi

Thanks!
--
Gustavo A. R. Silva