From: Jernej Skrabec <jernej.skra...@siol.net>

[ Upstream commit 367c359aa8637b15ee8df6335c5a29b7623966ec ]

sun4i_drv_add_endpoints() has a memory leak since it uses of_node_put()
when remote is equal to NULL and does nothing when remote has a valid
pointer.

Invert the logic to fix memory leak.

Signed-off-by: Jernej Skrabec <jernej.skra...@siol.net>
Signed-off-by: Maxime Ripard <maxime.rip...@bootlin.com>
Link: 
https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-7-jernej.skra...@siol.net
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c 
b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 50d19605c38f..e15fa2389e3f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -283,7 +283,6 @@ static int sun4i_drv_add_endpoints(struct device *dev,
                remote = of_graph_get_remote_port_parent(ep);
                if (!remote) {
                        DRM_DEBUG_DRIVER("Error retrieving the output node\n");
-                       of_node_put(remote);
                        continue;
                }
 
@@ -297,11 +296,13 @@ static int sun4i_drv_add_endpoints(struct device *dev,
 
                        if (of_graph_parse_endpoint(ep, &endpoint)) {
                                DRM_DEBUG_DRIVER("Couldn't parse endpoint\n");
+                               of_node_put(remote);
                                continue;
                        }
 
                        if (!endpoint.id) {
                                DRM_DEBUG_DRIVER("Endpoint is our panel... 
skipping\n");
+                               of_node_put(remote);
                                continue;
                        }
                }
-- 
2.17.1

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