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.
That's anyway in my todo list.
Thanks,
Andi