On Thu, May 8, 2014 at 9:25 AM, Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx> wrote: > From: Dan Williams <dan.j.williams@xxxxxxxxx> > > Save someone else the debug cycles of figuring out why a driver's > transfer request is failing or causing undefined system behavior. > Buffers submitted for dma must come from GFP allocated / DMA-able > memory. > > Return -EAGAIN matching the return value for dma_mapping_error() cases. > > Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > Cc: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx> > Cc: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx> > Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> > Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx> Thanks Mathias. One note, this was acked-by Alan here: http://marc.info/?l=linux-usb&m=139327920501989&w=2 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
