Messages in this thread | | | Date | Thu, 8 May 2014 09:21:51 -0700 | Subject | Re: [PATCH 03/10] usb: catch attempts to submit urbs with a vmalloc'd transfer buffer | From | Dan Williams <> |
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On Thu, May 8, 2014 at 9:25 AM, Mathias Nyman <mathias.nyman@linux.intel.com> wrote: > From: Dan Williams <dan.j.williams@intel.com> > > 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@rowland.harvard.edu> > Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com> > Cc: Mathias Nyman <mathias.nyman@linux.intel.com> > Signed-off-by: Dan Williams <dan.j.williams@intel.com> > Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Thanks Mathias.
One note, this was acked-by Alan here:
http://marc.info/?l=linux-usb&m=139327920501989&w=2
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