greybus: arche-platform: Add missing of_node_put() in arche_platform_change_state()

This node pointer is returned by of_find_compatible_node() with
refcount incremented in this function. of_node_put() on it before
exitting this function.

This is detected by Coccinelle semantic patch.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c
index e36ee98..34307ac 100644 (file)
--- a/drivers/staging/greybus/arche-platform.c
+++ b/drivers/staging/greybus/arche-platform.c
@@ -128,6 +128,7 @@ int arche_platform_change_state(enum arche_platform_state state,
        pdev = of_find_device_by_node(np);
        if (!pdev) {
                pr_err("arche-platform device not found\n");
+               of_node_put(np);
                return -ENODEV;
        }