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[media] redrat3: ensure dma is setup properly 

This fixes the driver on arm.

Reported-by: Steven Guitton <keltiek@gmail.com>
Tested-by: Steven Guitton <keltiek@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Sean Young 2014-12-01 05:48:16 -03:00 committed by Mauro Carvalho Chehab
parent ddc0085e91
commit d0a0a65e27
1 changed files with 3 additions and 1 deletions
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4
drivers/media/rc/redrat3.c
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@ -966,7 +966,7 @@ static int redrat3_dev_probe(struct usb_interface *intf,
rr3->ep_in = ep_in;
rr3->bulk_in_buf = usb_alloc_coherent(udev,
le16_to_cpu(ep_in->wMaxPacketSize), GFP_ATOMIC, &rr3->dma_in);
le16_to_cpu(ep_in->wMaxPacketSize), GFP_KERNEL, &rr3->dma_in);
if (!rr3->bulk_in_buf) {
dev_err(dev, "Read buffer allocation failure\n");
goto error;
@ -975,6 +975,8 @@ static int redrat3_dev_probe(struct usb_interface *intf,
pipe = usb_rcvbulkpipe(udev, ep_in->bEndpointAddress);
usb_fill_bulk_urb(rr3->read_urb, udev, pipe, rr3->bulk_in_buf,
le16_to_cpu(ep_in->wMaxPacketSize), redrat3_handle_async, rr3);
rr3->read_urb->transfer_dma = rr3->dma_in;
rr3->read_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
rr3->ep_out = ep_out;
rr3->udev = udev;