OMAPDSS: Fix node refcount leak in omapdss_of_get_next_port()

Fix node refcount leak in omapdss_of_get_next_port().

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/fbdev/omap2/dss/dss-of.c b/drivers/video/fbdev/omap2/dss/dss-of.c
index 928ee63..c8c065d 100644
--- a/drivers/video/fbdev/omap2/dss/dss-of.c
+++ b/drivers/video/fbdev/omap2/dss/dss-of.c
@@ -60,6 +60,8 @@
 			}
 			prev = port;
 		} while (of_node_cmp(port->name, "port") != 0);
+
+		of_node_put(ports);
 	}
 
 	return port;