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| author |   Ludovic Desroches <ludovic.desroches@atmel.com> | 2015-12-01 15:19:02 +0100 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2015-12-10 18:26:19 +0100 |
| commit | e43d2b75297e9a5d3fc154f28c8be95b9694b29b (patch) | |
| tree | 2ecd6039ea19ab7294022a7c9e4938d0139897b8 /drivers/pinctrl/pinctrl-at91-pio4.c | |
| parent | pinctrl: atlas7: add pulse conter pin group without direction pin (diff) | |
| download | linux-dev-e43d2b75297e9a5d3fc154f28c8be95b9694b29b.tar.xz linux-dev-e43d2b75297e9a5d3fc154f28c8be95b9694b29b.zip | |
pinctrl: at91-pio4: fix memleak after using dt map
configs is allocated by pinconf_generic_parse_dt_config(),
pinctrl_utils_add_map_configs() duplicates configs so it can and has to
be freed to prevent memory leaks.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Reported-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-at91-pio4.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-at91-pio4.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c index abdc16e5a970..d5bdcebc6aa6 100644 --- a/drivers/pinctrl/pinctrl-at91-pio4.c +++ b/drivers/pinctrl/pinctrl-at91-pio4.c @@ -500,7 +500,8 @@ static int atmel_pctl_dt_subnode_to_map(struct pinctrl_dev *pctldev, if (!num_pins) { dev_err(pctldev->dev, "no pins found in node %s\n", of_node_full_name(np)); - return -EINVAL; + ret = -EINVAL; + goto exit; } /* @@ -514,19 +515,19 @@ static int atmel_pctl_dt_subnode_to_map(struct pinctrl_dev *pctldev, ret = pinctrl_utils_reserve_map(pctldev, map, reserved_maps, num_maps, reserve); if (ret < 0) - return ret; + goto exit; for (i = 0; i < num_pins; i++) { const char *group, *func; ret = of_property_read_u32_index(np, "pinmux", i, &pinfunc); if (ret) - return ret; + goto exit; ret = atmel_pctl_xlate_pinfunc(pctldev, np, pinfunc, &group, &func); if (ret) - return ret; + goto exit; pinctrl_utils_add_map_mux(pctldev, map, reserved_maps, num_maps, group, func); @@ -537,11 +538,13 @@ static int atmel_pctl_dt_subnode_to_map(struct pinctrl_dev *pctldev, configs, num_configs, PIN_MAP_TYPE_CONFIGS_GROUP); if (ret < 0) - return ret; + goto exit; } } - return 0; +exit: + kfree(configs); + return ret; } static int atmel_pctl_dt_node_to_map(struct pinctrl_dev *pctldev, |