Hello, Timur, thanks a lot for your review. I'll fix all the issues you pointed at and return with v4. The only question I have: why calling dma_unmap_single() from within a spinlock is a bad practice? Best regards, Alexander -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html