diff options
| -rw-r--r-- | drivers/pinctrl/stm32/pinctrl-stm32.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c index 813eccbb9aaf..f6279c8646ca 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.c +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -414,7 +414,7 @@ static int stm32_pctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev, unsigned int num_configs; bool has_config = 0; unsigned reserve = 0; - int num_pins, num_funcs, maps_per_pin, i, err; + int num_pins, num_funcs, maps_per_pin, i, err = 0; pctl = pinctrl_dev_get_drvdata(pctldev); @@ -441,41 +441,45 @@ static int stm32_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) - return err; + goto exit; for (i = 0; i < num_pins; i++) { err = of_property_read_u32_index(node, "pinmux", i, &pinfunc); if (err) - return err; + goto exit; pin = STM32_GET_PIN_NO(pinfunc); func = STM32_GET_PIN_FUNC(pinfunc); if (!stm32_pctrl_is_function_valid(pctl, pin, func)) { dev_err(pctl->dev, "invalid function.\n"); - return -EINVAL; + err = -EINVAL; + goto exit; } grp = stm32_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 = stm32_pctrl_dt_node_to_map_func(pctl, pin, func, grp, map, reserved_maps, num_maps); if (err) - return err; + goto exit; if (has_config) { err = pinctrl_utils_add_map_configs(pctldev, map, @@ -483,11 +487,13 @@ static int stm32_pctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev, configs, num_configs, PIN_MAP_TYPE_CONFIGS_GROUP); if (err) - return err; + goto exit; } } - return 0; +exit: + kfree(configs); + return err; } static int stm32_pctrl_dt_node_to_map(struct pinctrl_dev *pctldev, |