configs will kmemdup to dup_configs in pictrl util function. So configs need to be freed.
Signed-off-by: Hongzhou Yang <hongzhou.y...@mediatek.com> Reviewed-by: Daniel Kurtz <djku...@chromium.org> Reviewed-by: Matthias Brugger <matthias....@gmail.com> --- Fix a memleak issue. According to Yingjoe's comment, add return checek for pinconf_generic_parse_dt_config. drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 27 ++++++++++++++++--------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c index 5c71727..8db7cdf 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c @@ -509,6 +509,9 @@ static int mtk_pctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev, 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 @@ static int mtk_pctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev, 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 @@ static int mtk_pctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev, 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 @@ static int mtk_pctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev, 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; } -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html