From: Daniel Stone <daniels@collabora.com>
Date: Mon, 25 May 2015 18:11:49 +0000 (+0100)
Subject: drm: Retain reference to blob properties in lookup
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=da9b2a381a32c2a287f99e4be2f372587c53ef14;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

drm: Retain reference to blob properties in lookup

When we look up a blob property, make sure we retain a reference to the
blob for the lifetime.

v2: Use DRM_MODE_PROP_BLOB, not PROP_OBJECT + OBJECT_BLOB.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Tested-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index e548c50edc94..2de6edf821c7 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -4775,7 +4775,8 @@ void drm_property_change_valid_put(struct drm_property *property,
 	if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) {
 		if (property->values[0] == DRM_MODE_OBJECT_FB)
 			drm_framebuffer_unreference(obj_to_fb(ref));
-	}
+	} else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB))
+		drm_property_unreference_blob(obj_to_blob(ref));
 }
 
 /**