On Mon, 31 Jan 2011, Anatolij Gustschin wrote:
> Running with enabled debug output in the mx3_camera driver results
> in a kernel crash:
> ...
> mx3-camera mx3-camera.0: Providing format Bayer BGGR (sRGB) 8 bit using code 11
> Unable to handle kernel NULL pointer dereference at virtual address 00000004
> ...
>
> Fix it by incrementing 'xlate' after usage.
>
> Signed-off-by: Anatolij Gustschin <agust@xxxxxxx>
> ---
> drivers/media/video/mx3_camera.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c
> index b9cb4a4..7bcaaf7 100644
> --- a/drivers/media/video/mx3_camera.c
> +++ b/drivers/media/video/mx3_camera.c
> @@ -734,9 +734,9 @@ static int mx3_camera_get_formats(struct soc_camera_device *icd, unsigned int id
> if (xlate) {
> xlate->host_fmt = fmt;
> xlate->code = code;
> - xlate++;
> dev_dbg(dev, "Providing format %x in pass-through mode\n",
> xlate->host_fmt->fourcc);
> + xlate++;
Let's take an even easier path:
- xlate->host_fmt->fourcc);
+ fmt->fourcc);
> }
>
> return formats;
> --
> 1.7.1
Thanks
Guennadi
---
Guennadi Liakhovetski
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