In the function stm32_usart_init_port, intent of the code maybe when irq returns a value of zero, the return should be '-ENODEV'. But the conditional expression '? :' maybe clerical error, it should be '?:' to make '-ENODEV' work. But in fact, as the example in platform.c is * int irq = platform_get_irq(pdev, 0); * if (irq < 0) * return irq; So the return value of zero is unnecessary to check, at last remove the unnecessary '?: -ENODEV'. Co-developed-by: Zhang Shengju <zhangshengju@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Zhang Shengju <zhangshengju@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx> --- drivers/tty/serial/stm32-usart.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index ef793b3b4..090822cd1 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -1034,8 +1034,8 @@ static int stm32_usart_init_port(struct stm32_port *stm32port, int ret, irq; irq = platform_get_irq(pdev, 0); - if (irq <= 0) - return irq ? : -ENODEV; + if (irq < 0) + return irq; port->iotype = UPIO_MEM; port->flags = UPF_BOOT_AUTOCONF; -- 2.20.1.windows.1
