slimbus: core: Fix mismatch in of_node_get/put

commit 01360857 upstream.

Adding missing corresponding of_node_put

Fixes: 7588a511 ("slimbus: core: add support to device tree helper")
Signed-off-by: Saravana Kannan <saravanak@google.com>
[Srini: added fixes tag, removed NULL check and updated log]
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200511151334.362-3-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/slimbus/core.c

@@ -236,6 +236,7 @@ EXPORT_SYMBOL_GPL(slim_register_controller);
 /* slim_remove_device: Remove the effect of slim_add_device() */
 static void slim_remove_device(struct slim_device *sbdev)
 {
+	of_node_put(sbdev->dev.of_node);
 	device_unregister(&sbdev->dev);
 }