[linux-dvb] [PATCH] usb-urb.c: Fix initialization of URB list.

[linux-dvb] [PATCH] usb-urb.c: Fix initialization of URB list.

[Thomas Reitmayr]

The following patch was sent to this list back in May 2008
(http://linuxtv.org/pipermail/linux-dvb/2008-May/025952.html) and had a
followup of myself in October 2008.
As the kernel oops with USB DVB receivers happens again and again I want
to propose to finally apply this patch to the v4l-dvb repository.
Thanks,
-Thomas

Signed-off-by: Thomas Reitmayr <treitmayr@devbase.at>

--- linux-old/drivers/media/dvb/dvb-usb/usb-urb.c	2008-12-29 13:50:33.000000000 +0100
+++ linux/drivers/media/dvb/dvb-usb/usb-urb.c	2008-12-29 13:52:19.000000000 +0100
@@ -160,7 +160,8 @@ static int usb_bulk_urb_init(struct usb_
 				stream->props.u.bulk.buffersize,
 				usb_urb_complete, stream);
 
-		stream->urb_list[i]->transfer_flags = 0;
+		stream->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
+		stream->urb_list[i]->transfer_dma = stream->dma_addr[i];
 		stream->urbs_initialized++;
 	}
 	return 0;





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Re: [linux-dvb] [PATCH] usb-urb.c: Fix initialization of URB list.

[Patrick Boettcher]

Hi Thomas,

On Mon, 29 Dec 2008, Thomas Reitmayr wrote:

> The following patch was sent to this list back in May 2008
> (http://linuxtv.org/pipermail/linux-dvb/2008-May/025952.html) and had a
> followup of myself in October 2008.
> As the kernel oops with USB DVB receivers happens again and again I want
> to propose to finally apply this patch to the v4l-dvb repository.
> Thanks,
> -Thomas
>
> Signed-off-by: Thomas Reitmayr <treitmayr@devbase.at>
>
> --- linux-old/drivers/media/dvb/dvb-usb/usb-urb.c	2008-12-29 13:50:33.000000000 +0100
> +++ linux/drivers/media/dvb/dvb-usb/usb-urb.c	2008-12-29 13:52:19.000000000 +0100
> @@ -160,7 +160,8 @@ static int usb_bulk_urb_init(struct usb_
> 				stream->props.u.bulk.buffersize,
> 				usb_urb_complete, stream);
>
> -		stream->urb_list[i]->transfer_flags = 0;
> +		stream->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
> +		stream->urb_list[i]->transfer_dma = stream->dma_addr[i];
> 		stream->urbs_initialized++;
> 	}
> 	return 0;

Committed and ask for pull request.

Thanks and sorry for the delay.

Patrick.

--
   Mail: patrick.boettcher@desy.de
   WWW:  http://www.wi-bw.tfh-wildau.de/~pboettch/

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