pinctrl: pinconf-generic: add missing of_node_put()

[ Upstream commit 5ead93289815a075d43c415e35c8beafafb801c9 ]

of_node_put() needs to be called when jumping out of the loop, since
for_each_available_child_of_node() will increase the refcount of node.

Fixes: c7289500e29d ("pinctrl: pinconf-generic: scan also referenced phandle node")
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Link: https://lore.kernel.org/r/20221125070156.3535855-1-zhangpeng362@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index 415d1df..365c4b0 100644 (file)
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -395,8 +395,10 @@ int pinconf_generic_dt_node_to_map(struct pinctrl_dev *pctldev,
        for_each_available_child_of_node(np_config, np) {
                ret = pinconf_generic_dt_subnode_to_map(pctldev, np, map,
                                        &reserved_maps, num_maps, type);
-               if (ret < 0)
+               if (ret < 0) {
+                       of_node_put(np);
                        goto exit;
+               }
        }
        return 0;