V4L/DVB (7180): em28xx: add URB_NO_TRANSFER_DMA_MAP, since urb->transfer_dma is set

Thanks to Alan Stern <stern@rowland.harvard.edu> for pointing this issue.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
index 0966017ca745ab328696e29be39d347366e988f0..7d1537cab8679f03d8fc4188fd1a2bfe9642e247 100644 (file)
--- a/drivers/media/video/em28xx/em28xx-core.c
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -780,7 +780,7 @@ int em28xx_init_isoc(struct em28xx *dev)
                urb->dev = dev->udev;
                urb->context = dev;
                urb->pipe = usb_rcvisocpipe(dev->udev, 0x82);
-               urb->transfer_flags = URB_ISO_ASAP;
+               urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
                urb->interval = 1;
                urb->transfer_buffer = dev->transfer_buffer[i];
                urb->complete = em28xx_isocIrq;