[2/3] serial: mxs-auart: Don't check for mctrl_gpio_to_gpiod() returning error
diff mbox series

Message ID 20190814092924.13857-3-geert+renesas@glider.be
State New
Headers show
Series
  • [1/3] serial: atmel: Don't check for mctrl_gpio_to_gpiod() returning error
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Commit Message

Geert Uytterhoeven Aug. 14, 2019, 9:29 a.m. UTC
Since commit 1d267ea6539f2663 ("serial: mctrl-gpio: simplify init
routine"), mctrl_gpio_init() returns failure if the assignment to any
member of the gpio array results in an error pointer.
Since commit c359522194593815 ("serial: mctrl_gpio: Avoid probe failures
in case of missing gpiolib"), mctrl_gpio_to_gpiod() returns NULL in the
!CONFIG_GPIOLIB case.
Hence there is no longer a need to check for mctrl_gpio_to_gpiod()
returning an error value.  A simple NULL check is sufficient.

This follows the spirit of commit 445df7ff3fd1a0a9 ("serial: mctrl-gpio:
drop usages of IS_ERR_OR_NULL") in the mctrl-gpio core.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/tty/serial/mxs-auart.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

Simon Horman Aug. 19, 2019, 12:26 p.m. UTC | #1
On Wed, Aug 14, 2019 at 11:29:23AM +0200, Geert Uytterhoeven wrote:
> Since commit 1d267ea6539f2663 ("serial: mctrl-gpio: simplify init
> routine"), mctrl_gpio_init() returns failure if the assignment to any
> member of the gpio array results in an error pointer.
> Since commit c359522194593815 ("serial: mctrl_gpio: Avoid probe failures
> in case of missing gpiolib"), mctrl_gpio_to_gpiod() returns NULL in the
> !CONFIG_GPIOLIB case.
> Hence there is no longer a need to check for mctrl_gpio_to_gpiod()
> returning an error value.  A simple NULL check is sufficient.
> 
> This follows the spirit of commit 445df7ff3fd1a0a9 ("serial: mctrl-gpio:
> drop usages of IS_ERR_OR_NULL") in the mctrl-gpio core.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Reviewed-by: Simon Horman <horms+renesas@verge.net.au>

> ---
>  drivers/tty/serial/mxs-auart.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
> index 4c188f4079b3ea68..e3452597068292f9 100644
> --- a/drivers/tty/serial/mxs-auart.c
> +++ b/drivers/tty/serial/mxs-auart.c
> @@ -969,10 +969,8 @@ static int mxs_auart_dma_init(struct mxs_auart_port *s)
>  
>  }
>  
> -#define RTS_AT_AUART()	IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(s->gpios,	\
> -							UART_GPIO_RTS))
> -#define CTS_AT_AUART()	IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(s->gpios,	\
> -							UART_GPIO_CTS))
> +#define RTS_AT_AUART()	!mctrl_gpio_to_gpiod(s->gpios, UART_GPIO_RTS)
> +#define CTS_AT_AUART()	!mctrl_gpio_to_gpiod(s->gpios, UART_GPIO_CTS)
>  static void mxs_auart_settermios(struct uart_port *u,
>  				 struct ktermios *termios,
>  				 struct ktermios *old)
> -- 
> 2.17.1
>

Patch
diff mbox series

diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 4c188f4079b3ea68..e3452597068292f9 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -969,10 +969,8 @@  static int mxs_auart_dma_init(struct mxs_auart_port *s)
 
 }
 
-#define RTS_AT_AUART()	IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(s->gpios,	\
-							UART_GPIO_RTS))
-#define CTS_AT_AUART()	IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(s->gpios,	\
-							UART_GPIO_CTS))
+#define RTS_AT_AUART()	!mctrl_gpio_to_gpiod(s->gpios, UART_GPIO_RTS)
+#define CTS_AT_AUART()	!mctrl_gpio_to_gpiod(s->gpios, UART_GPIO_CTS)
 static void mxs_auart_settermios(struct uart_port *u,
 				 struct ktermios *termios,
 				 struct ktermios *old)