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authorDevin Heitmueller <dheitmueller@linuxtv.org>2009-03-22 23:39:12 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:43:31 -0300
commitf876897015e15e879ad531f78260086a7fdee813 (patch)
tree79503cefb50521d5c4f8179014593f039bc62c44
parent62cfc346a325f60256f5eda93ac3b6e7ba6cdc1b (diff)
V4L/DVB (11140): usbvision: 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>
-rw-r--r--drivers/media/video/usbvision/usbvision-core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/usbvision/usbvision-core.c b/drivers/media/video/usbvision/usbvision-core.c
index 71cb4aabdf7d..a0feb1c97736 100644
--- a/drivers/media/video/usbvision/usbvision-core.c
+++ b/drivers/media/video/usbvision/usbvision-core.c
@@ -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;