[PATCH] drm/of: free the right object

[Julia Lawall]

There is no need to free a NULL value.  Instead, free the object
that is leaking due to the iterator.

The semantic patch that finds this problem is as follows:

// <smpl>
@@
expression x,e;
identifier f;
@@
 x = f(...);
 if (x == NULL) {
        ... when any
            when != x = e
*       of_node_put(x);
        ...
 }
// </smpl>

Fixes: 6529007522de ("drm: of: Add drm_of_lvds_get_dual_link_pixel_order")
Signed-off-by: Julia Lawall <julia.law...@inria.fr>

---
 drivers/gpu/drm/drm_of.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
index ca04c34e8251..197c57477344 100644
--- a/drivers/gpu/drm/drm_of.c
+++ b/drivers/gpu/drm/drm_of.c
@@ -315,7 +315,7 @@ static int drm_of_lvds_get_remote_pixels_type(
 
                remote_port = of_graph_get_remote_port(endpoint);
                if (!remote_port) {
-                       of_node_put(remote_port);
+                       of_node_put(endpoint);
                        return -EPIPE;
                }