| Message ID | 5ce023a8-db0c-13a9-be42-09e3348ca44d@omp.ru |
|---|---|
| State | New |
| Headers | show |
| Series | pinctrl: stm32: return errors from stm32_gpio_direction_output() | expand |
On Wed, Nov 15, 2023 at 9:34 PM Sergey Shtylyov <s.shtylyov@omp.ru> wrote: > In the STMicroelectronics STM32 driver, stm32_gpio_direction_output() > ignores the result of pinctrl_gpio_direction_output() for no good reason. > Let's propagate errors from pinctrl_gpio_direction_output() upstream... > > Found by Linux Verification Center (linuxtesting.org) with the Svace static > analysis tool. > > Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru> Patch applied! Yours, Linus Walleij
Index: linux-pinctrl/drivers/pinctrl/stm32/pinctrl-stm32.c =================================================================== --- linux-pinctrl.orig/drivers/pinctrl/stm32/pinctrl-stm32.c +++ linux-pinctrl/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -240,9 +240,8 @@ static int stm32_gpio_direction_output(s struct stm32_gpio_bank *bank = gpiochip_get_data(chip); __stm32_gpio_set(bank, offset, value); - pinctrl_gpio_direction_output(chip, offset); - return 0; + return pinctrl_gpio_direction_output(chip, offset); }
In the STMicroelectronics STM32 driver, stm32_gpio_direction_output() ignores the result of pinctrl_gpio_direction_output() for no good reason. Let's propagate errors from pinctrl_gpio_direction_output() upstream... Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool. Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru> --- The patch is against the 'devel' branch of Linus W.'s 'linux-pinctrl.git' repo. drivers/pinctrl/stm32/pinctrl-stm32.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)