From: Daniel Stone <daniels@collabora.com>
Date: Mon, 20 Apr 2015 18:22:52 +0000 (+0100)
Subject: drm: Don't leak path blob property when updating
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4339ed82b2fe11689353ab1955c8ee1af8b5c385;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

drm: Don't leak path blob property when updating

Previously, when updating the path blob property, we would leak the
existing one. Make this symmetrical with the tile and EDID blob
pointers.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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 3007b44e6bf4..66671e040ba0 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -4304,6 +4304,9 @@ int drm_mode_connector_set_path_property(struct drm_connector *connector,
 	size_t size = strlen(path) + 1;
 	int ret;
 
+	if (connector->path_blob_ptr)
+		drm_property_destroy_blob(dev, connector->path_blob_ptr);
+
 	connector->path_blob_ptr = drm_property_create_blob(connector->dev,
 							    size, path);
 	if (!connector->path_blob_ptr)