From: Daniel Vetter Date: Tue, 10 Jul 2012 16:11:08 +0000 (+0200) Subject: drm/i915: don't update the fb base if there is no fb X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=835c5873d6e38cb317091ace7c1f3c40cc0607ce;p=linux-beck.git drm/i915: don't update the fb base if there is no fb Otherwise we'll set_fb complains pretty loudly if we the crtc is off and userspace moves the NULL fb around a bit. Yeah, this actually happens in the wild ... Reviewed-by: Jesse Barnes Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 71cb90d763bd..01d871b16f62 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6828,7 +6828,7 @@ intel_set_config_compute_mode_changes(struct drm_mode_set *set, config->fb_changed = true; } - if (set->x != set->crtc->x || set->y != set->crtc->y) + if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) config->fb_changed = true; if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {