pinctrl: mediatek: fix a memleak when do dt maps.
configs will kmemdup to dup_configs in pictrl util function.
So configs need to be freed.
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index f307f1d..3bb4a2a 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -509,6 +509,9 @@
err = pinconf_generic_parse_dt_config(node, pctldev, &configs,
&num_configs);
+ if (err)
+ return err;
+
if (num_configs)
has_config = 1;
@@ -520,21 +523,23 @@
if (has_config && num_pins >= 1)
maps_per_pin++;
- if (!num_pins || !maps_per_pin)
- return -EINVAL;
+ if (!num_pins || !maps_per_pin) {
+ err = -EINVAL;
+ goto exit;
+ }
reserve = num_pins * maps_per_pin;
err = pinctrl_utils_reserve_map(pctldev, map,
reserved_maps, num_maps, reserve);
if (err < 0)
- goto fail;
+ goto exit;
for (i = 0; i < num_pins; i++) {
err = of_property_read_u32_index(node, "pinmux",
i, &pinfunc);
if (err)
- goto fail;
+ goto exit;
pin = MTK_GET_PIN_NO(pinfunc);
func = MTK_GET_PIN_FUNC(pinfunc);
@@ -543,20 +548,21 @@
func >= ARRAY_SIZE(mtk_gpio_functions)) {
dev_err(pctl->dev, "invalid pins value.\n");
err = -EINVAL;
- goto fail;
+ goto exit;
}
grp = mtk_pctrl_find_group_by_pin(pctl, pin);
if (!grp) {
dev_err(pctl->dev, "unable to match pin %d to group\n",
pin);
- return -EINVAL;
+ err = -EINVAL;
+ goto exit;
}
err = mtk_pctrl_dt_node_to_map_func(pctl, pin, func, grp, map,
reserved_maps, num_maps);
if (err < 0)
- goto fail;
+ goto exit;
if (has_config) {
err = pinctrl_utils_add_map_configs(pctldev, map,
@@ -564,13 +570,14 @@
configs, num_configs,
PIN_MAP_TYPE_CONFIGS_GROUP);
if (err < 0)
- goto fail;
+ goto exit;
}
}
- return 0;
+ err = 0;
-fail:
+exit:
+ kfree(configs);
return err;
}