From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Mon, 22 Jun 2015 10:37:46 +0000 (+0300)
Subject: drm/atomic: Don't set crtc_state->enable manually
X-Git-Tag: v4.2-rc1~13^2~9^2
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c30f55a7b1336cdfeac74c7931ebff40a32e72b7;p=linux.git

drm/atomic: Don't set crtc_state->enable manually

The enable field needs to be kept in sync with the mode_blob field. Call
drm_atomic_set_mode_prop_for_crtc() instead of setting enable to false
in order to dereference the mode blob correctly.

v2:
- Check the return value of drm_atomic_set_mode_prop_for_crtc()
- Drop the num_connectors local variable

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index b06a607db6c2..5b59d5ad7d1c 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1555,10 +1555,14 @@ static int update_output_state(struct drm_atomic_state *state,
 		if (crtc == set->crtc)
 			continue;
 
-		crtc_state->enable =
-			drm_atomic_connectors_for_crtc(state, crtc);
-		if (!crtc_state->enable)
+		if (!drm_atomic_connectors_for_crtc(state, crtc)) {
+			ret = drm_atomic_set_mode_prop_for_crtc(crtc_state,
+								NULL);
+			if (ret < 0)
+				return ret;
+
 			crtc_state->active = false;
+		}
 	}
 
 	return 0;