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authorDevin Heitmueller <dheitmueller@linuxtv.org>2009-03-22 23:41:28 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:43:32 -0300
commit9a4f8201a5d241dd725c1e1c796d826e49dcd396 (patch)
tree2a96a6e9b2ad759637b8a768821dbac2aa8d686d /drivers/media/video/em28xx
parentf876897015e15e879ad531f78260086a7fdee813 (diff)
V4L/DVB (11141): em28xx: fix oops on ARM platform when allocating transfer buffers
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>
Diffstat (limited to 'drivers/media/video/em28xx')
-rw-r--r--drivers/media/video/em28xx/em28xx-core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
index c896d24032f..8f1999ca480 100644
--- a/drivers/media/video/em28xx/em28xx-core.c
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -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++) {