[PATCH 3/4] tty/serial: mxs-auart: remove uneeded IS_ERR_OR_NULL calls
From: Richard Genoud <hidden>
Date: 2017-03-03 14:29:42
Also in:
linux-serial, lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Since commit 1d267ea6539f ("serial: mctrl-gpio: simplify init routine"),
the mctrl_gpio_to_gpiod() function can't return an error anymore.
So, just testing for a NULL pointer is ok.
Signed-off-by: Richard Genoud <redacted>
---
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 6989b227d134..541933d8a5c6 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c@@ -973,10 +973,8 @@ 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) == NULL) +#define CTS_AT_AUART() (mctrl_gpio_to_gpiod(s->gpios, UART_GPIO_CTS) == NULL) static void mxs_auart_settermios(struct uart_port *u, struct ktermios *termios, struct ktermios *old)