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V4L/DVB (11141): em28xx: 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 23:41:28 -03:00 committed by Mauro Carvalho Chehab
parent f876897015
commit 9a4f8201a5
1 changed files with 1 additions and 1 deletions
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2
drivers/media/video/em28xx/em28xx-core.c
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@ -982,7 +982,7 @@ int em28xx_init_isoc(struct em28xx *dev, int max_packets,
em28xx_irq_callback, dma_q, 1);
urb->number_of_packets = max_packets;
urb->transfer_flags = URB_ISO_ASAP;
urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
k = 0;
for (j = 0; j < max_packets; j++) {