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drm: make sure visible is set to false if fb is null 

We can't let visible set true while the fb is null, some places of
the code only check for visible to base its decisions.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Gustavo Padovan 2014-10-24 19:00:17 +01:00 committed by Daniel Vetter
parent c5d974728f
commit 083fe3b035
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/drm_plane_helper.c
View File

@ -127,6 +127,11 @@ int drm_plane_helper_check_update(struct drm_plane *plane,
return -ERANGE;
}
if (!fb) {
*visible = false;
return 0;
}
*visible = drm_rect_clip_scaled(src, dest, clip, hscale, vscale);
if (!*visible)
/*