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serial: Change poll_out signature

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poll_out function was returning the character that was sent. It
happens that it is always constant and the return of this functions is
never tested. Changing it to be a void function.

MISRA-C rule 17.7

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit is contained in:
Flavio Ceolin 2018-11-26 16:43:46 -08:00 • committed by Andrew Boie
commit 98d03266f1
30 changed files with 37 additions and 106 deletions
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4
drivers/serial/uart_stm32.c
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@ -50,7 +50,7 @@ static int uart_stm32_poll_in(struct device *dev, unsigned char *c)
return 0;
}
static unsigned char uart_stm32_poll_out(struct device *dev,
static void uart_stm32_poll_out(struct device *dev,
unsigned char c)
{
USART_TypeDef *UartInstance = UART_STRUCT(dev);
@ -62,8 +62,6 @@ static unsigned char uart_stm32_poll_out(struct device *dev,
LL_USART_ClearFlag_TC(UartInstance);
LL_USART_TransmitData8(UartInstance, (u8_t)c);
return c;
}
static inline void __uart_stm32_get_clock(struct device *dev)