pinctrl: k210: call of_node_put()

[ Upstream commit a8acc11643082a706de86a19f1f824712d971984 ]

Since for_each_available_child_of_node() will increase the refcount of
node, we need to call of_node_put() manually when breaking out of the
iteration.

Fixes: d4c34d09ab03 ("pinctrl: Add RISC-V Canaan Kendryte K210 FPIOA driver")
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Link: https://lore.kernel.org/r/20221122075853.2496680-1-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/pinctrl-k210.c b/drivers/pinctrl/pinctrl-k210.c
index ecab6bf..ad4db99 100644 (file)
--- a/drivers/pinctrl/pinctrl-k210.c
+++ b/drivers/pinctrl/pinctrl-k210.c
@@ -862,8 +862,10 @@ static int k210_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
        for_each_available_child_of_node(np_config, np) {
                ret = k210_pinctrl_dt_subnode_to_map(pctldev, np, map,
                                                     &reserved_maps, num_maps);
-               if (ret < 0)
+               if (ret < 0) {
+                       of_node_put(np);
                        goto err;
+               }
        }
        return 0;