drm/i915: propagate error from legacy resume handler

Signed-off-by: NImre Deak <imre.deak@intel.com>
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_drv.c

@@ -810,10 +810,13 @@ int i915_resume(struct drm_device *dev)
 
 static int i915_resume_legacy(struct drm_device *dev)
 {
-	i915_resume_early(dev);
-	i915_resume(dev);
+	int ret;
 
-	return 0;
+	ret = i915_resume_early(dev);
+	if (ret)
+		return ret;
+
+	return i915_resume(dev);
 }
 
 /**