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V4L/DVB (11140): usbvision: fix oops on ARM platform when allocating transfer buffers

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Add missing URB_NO_TRANSFER_DMA_MAP flag, since the use of consistent memory
is not permitted for DMA on the ARM platform.

Thanks to Paul Thomas <pthomas8589@gmail.com> for providing sample ARM hardware
that was experiencing the oops (tested on the at91rm9200 based LinuxStamp).

Thanks to David Brownell <david-b@pacbell.net> for providing insight into the
ARM memory architecture.

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Devin Heitmueller 2009-03-22 23:39:12 -03:00 committed by Mauro Carvalho Chehab
parent 62cfc346a3
commit f876897015
1 changed files with 1 additions and 1 deletions
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drivers/media/video/usbvision/usbvision-core.c
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@ -2503,7 +2503,7 @@ int usbvision_init_isoc(struct usb_usbvision *usbvision)
urb->dev = dev;
urb->context = usbvision;
urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp);
urb->transfer_flags = URB_ISO_ASAP;
urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
urb->interval = 1;
urb->transfer_buffer = usbvision->sbuf[bufIdx].data;
urb->complete = usbvision_isocIrq;