On Fri, Jul 23, 2010 at 6:09 AM, Dan Carpenter <error27@xxxxxxxxx> wrote:
> This function has sanity checks to make sure that "dev" is non-null. I
> moved the dereference down below the checks. In the current code "dev"
> is never actually null.
>
> Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
>
> diff --git a/drivers/media/video/au0828/au0828-video.c b/drivers/media/video/au0828/au0828-video.c
> index d97e0a2..7989a7b 100644
> --- a/drivers/media/video/au0828/au0828-video.c
> +++ b/drivers/media/video/au0828/au0828-video.c
> @@ -441,7 +441,7 @@ static void au0828_copy_vbi(struct au0828_dev *dev,
> unsigned char *outp, unsigned long len)
> {
> unsigned char *startwrite, *startread;
> - int bytesperline = dev->vbi_width;
> + int bytesperline;
> int i, j = 0;
>
> if (dev == NULL) {
> @@ -464,6 +464,8 @@ static void au0828_copy_vbi(struct au0828_dev *dev,
> return;
> }
>
> + bytesperline = dev->vbi_width;
> +
> if (dma_q->pos + len > buf->vb.size)
> len = buf->vb.size - dma_q->pos;
>
>
In reality the check for "dev" can be removed since it will *never*
happen (I added it during some debugging, as can be seen by the rest
of the NULL checks).
Either way though, this patch is fine.
Acked-by: Devin Heitmueller <dheitmueller@xxxxxxxxxxxxxx>
--
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
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