diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2019-08-14 12:29:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-04 13:43:54 +0300 |
| commit | 6cbdf5c659ab6e8f081efde1ec60e0f8f8f7d8a4 (patch) | |
| tree | 1e91373fcc3a9887c8b4ecdde3843fb26b529f51 /drivers/tty | |
| parent | a16c4c5a9cb6368a08c457b6b2dc0be25958dfc0 (diff) | |
| download | linux-6cbdf5c659ab6e8f081efde1ec60e0f8f8f7d8a4.tar.xz | |
serial: mxs-auart: Don't check for mctrl_gpio_to_gpiod() returning error
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>
Link: https://lore.kernel.org/r/20190814092924.13857-3-geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/mxs-auart.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 4c188f4079b3..e34525970682 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -969,10 +969,8 @@ err_out: } -#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) |