[DRM] Fix a regression caused by a typo

[Daniel Vetter]

On Thu, Jul 02, 2015 at 02:57:19PM -0400, Shixin Zeng wrote:
> From: Shixin Zeng <zeng.shixin at gmail.com>
> 
> The length of each EDID block is EDID_LENGTH, and number of blocks is (1
> + edid->extensions)
> 
> This causes wrong EDID to be passed on, and is a regression introduced
> by d2ed34362a52 (drm: Introduce helper for replacing blob properties)

When fixing a regression, please cc the people who wrote/reviewed the
offending patch. Added them and merged the patch to topic/drm-fixes.

Thanks, Daniel

> 
> Signed-off-by: Shixin Zeng <zeng.shixin at gmail.com>
> ---
>  drivers/gpu/drm/drm_crtc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
> index b69ed97..b9ba061 100644
> --- a/drivers/gpu/drm/drm_crtc.c
> +++ b/drivers/gpu/drm/drm_crtc.c
> @@ -4732,7 +4732,7 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector,
>  		return 0;
>  
>  	if (edid)
> -		size = EDID_LENGTH + (1 + edid->extensions);
> +		size = EDID_LENGTH * (1 + edid->extensions);
>  
>  	ret = drm_property_replace_global_blob(dev,
>  					       &connector->edid_blob_ptr,
> -- 
> 2.4.5
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch