From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Tue, 11 Jul 2017 14:33:11 +0000 (+0200)
Subject: drm/tilcdc: Handle drm_atomic_helper_swap_state failure
X-Git-Tag: MMI-PSA29.97-13-9~4697^2~52^2~13
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fad9e43a331c46d5e011c415117ee7b949454a86;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

drm/tilcdc: Handle drm_atomic_helper_swap_state failure

drm_atomic_helper_swap_state() will be changed to interruptible waiting
in the next few commits, so all drivers have to be changed to handling
failure.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170711143314.2148-10-maarten.lankhorst@linux.intel.com
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index d67e18983a7d..049d2f5a1ee4 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -108,7 +108,11 @@ static int tilcdc_commit(struct drm_device *dev,
 	if (ret)
 		return ret;
 
-	drm_atomic_helper_swap_state(state, true);
+	ret = drm_atomic_helper_swap_state(state, true);
+	if (ret) {
+		drm_atomic_helper_cleanup_planes(dev, state);
+		return ret;
+	}
 
 	/*
 	 * Everything below can be run asynchronously without the need to grab