Re: [patch 2/5] drivers/gpu/drm/via/via_video.c: fix off by one issue

[Thomas H. <th...@sh...>]

ak...@li... wrote:
> From: Dan Carpenter <er...@gm...>
>
> "fx->lock" is used as the index in "dev_priv->decoder_queue[fx->lock]"
> which is an array of "VIA_NR_XVMC_LOCKS" elements.
>
> Signed-off-by: Dan Carpenter <er...@gm...>
> Cc: David Airlie <ai...@li...>
> Signed-off-by: Andrew Morton <ak...@li...>
>   

Acked-by: Thomas Hellstrom <the...@vm...>

> ---
>
>  drivers/gpu/drm/via/via_video.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff -puN drivers/gpu/drm/via/via_video.c~drivers-gpu-drm-via-via_videoc-fix-off-by-one-issue drivers/gpu/drm/via/via_video.c
> --- a/drivers/gpu/drm/via/via_video.c~drivers-gpu-drm-via-via_videoc-fix-off-by-one-issue
> +++ a/drivers/gpu/drm/via/via_video.c
> @@ -75,7 +75,7 @@ int via_decoder_futex(struct drm_device 
>  
>  	DRM_DEBUG("\n");
>  
> -	if (fx->lock > VIA_NR_XVMC_LOCKS)
> +	if (fx->lock >= VIA_NR_XVMC_LOCKS)
>  		return -EFAULT;
>  
>  	lock = (volatile int *)XVMCLOCKPTR(sAPriv, fx->lock);
> _
>
> ------------------------------------------------------------------------------
> --
> _______________________________________________
> Dri-devel mailing list
> Dri...@li...
> https://lists.sourceforge.net/lists/listinfo/dri-devel
>