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serial: mctrl_gpio: Fix passing zero to 'ERR_PTR' warning 

drivers/tty/serial/serial_mctrl_gpio.c:214
 mctrl_gpio_init() warn: passing zero to 'ERR_PTR'

gpiod_to_irq() never return 0, so remove the useless test
and make code more clear.

Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20201031030530.1304-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
YueHaibing 2020-10-31 11:05:30 +08:00 committed by Greg Kroah-Hartman
parent 3d608a591b
commit cbd90e7461
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/serial_mctrl_gpio.c
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@ -207,7 +207,7 @@ struct mctrl_gpios *mctrl_gpio_init(struct uart_port *port, unsigned int idx)
continue; continue;
ret = gpiod_to_irq(gpios->gpio[i]); ret = gpiod_to_irq(gpios->gpio[i]);
if (ret <= 0) { if (ret < 0) {
dev_err(port->dev, dev_err(port->dev,
"failed to find corresponding irq for %s (idx=%d, err=%d)\n", "failed to find corresponding irq for %s (idx=%d, err=%d)\n",
mctrl_gpios_desc[i].name, idx, ret); mctrl_gpios_desc[i].name, idx, ret);