From: Mathieu Poirier <mathieu.poirier@linaro.org> To: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [stable 4.19+][PATCH 14/20] pinctrl: stm32: fix memory leak issue Date: Fri, 15 Nov 2019 15:33:50 -0700 [thread overview] Message-ID: <20191115223356.27675-14-mathieu.poirier@linaro.org> (raw) In-Reply-To: <20191115223356.27675-1-mathieu.poirier@linaro.org> From: Alexandre Torgue <alexandre.torgue@st.com> commit cd8c9b5a49576bf28990237715bc2cb2210ac80a upstream 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: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Cc: stable <stable@vger.kernel.org> # 4.19+ Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> --- drivers/pinctrl/stm32/pinctrl-stm32.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c index a9bec6e6fdd1..14dfbbd6c1c3 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.c +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -410,7 +410,7 @@ 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); @@ -437,41 +437,45 @@ 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, @@ -479,11 +483,13 @@ 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, -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Mathieu Poirier <mathieu.poirier@linaro.org> To: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [stable 4.19+][PATCH 14/20] pinctrl: stm32: fix memory leak issue Date: Fri, 15 Nov 2019 15:33:50 -0700 [thread overview] Message-ID: <20191115223356.27675-14-mathieu.poirier@linaro.org> (raw) In-Reply-To: <20191115223356.27675-1-mathieu.poirier@linaro.org> From: Alexandre Torgue <alexandre.torgue@st.com> commit cd8c9b5a49576bf28990237715bc2cb2210ac80a upstream 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: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Cc: stable <stable@vger.kernel.org> # 4.19+ Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> --- drivers/pinctrl/stm32/pinctrl-stm32.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c index a9bec6e6fdd1..14dfbbd6c1c3 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.c +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -410,7 +410,7 @@ 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); @@ -437,41 +437,45 @@ 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, @@ -479,11 +483,13 @@ 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, -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-11-15 22:34 UTC|newest] Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-11-15 22:33 [stable 4.19+][PATCH 01/20] i2c: stm32f7: fix first byte to send in slave mode Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 02/20] ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157 Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 03/20] mailbox: stm32_ipcc: add spinlock to fix channels concurrent access Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 04/20] crypto: stm31/hash - Fix hmac issue more than 256 bytes Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 05/20] media: stm32-dcmi: fix DMA corruption when stopping streaming Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 06/20] media: stm32-dcmi: fix check of pm_runtime_get_sync return value Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 07/20] hwrng: stm32 - fix unbalanced pm_runtime_enable Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 08/20] remoteproc: fix rproc_da_to_va in case of unallocated carveout Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 09/20] clk: stm32mp1: fix HSI divider flag Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 10/20] clk: stm32mp1: fix mcu divider table Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 11/20] clk: stm32mp1: add CLK_SET_RATE_NO_REPARENT to Kernel clocks Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 12/20] clk: stm32mp1: parent clocks update Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 13/20] mailbox: mailbox-test: fix null pointer if no mmio Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier [this message] 2019-11-15 22:33 ` [stable 4.19+][PATCH 14/20] pinctrl: stm32: fix memory leak issue Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 15/20] ASoC: stm32: i2s: fix dma configuration Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 16/20] ASoC: stm32: i2s: fix 16 bit format support Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 17/20] ASoC: stm32: i2s: fix IRQ clearing Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 18/20] ASoC: stm32: sai: add missing put_device() Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 19/20] media: ov5640: fix framerate update Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-15 22:33 ` [stable 4.19+][PATCH 20/20] dmaengine: stm32-dma: check whether length is aligned on FIFO threshold Mathieu Poirier 2019-11-15 22:33 ` Mathieu Poirier 2019-11-21 20:35 ` [stable 4.19+][PATCH 01/20] i2c: stm32f7: fix first byte to send in slave mode Greg KH 2019-11-21 20:35 ` Greg KH 2019-11-22 16:27 ` Mathieu Poirier 2019-11-22 16:27 ` Mathieu Poirier
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