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serial: mctrl-gpio: drop usages of IS_ERR_OR_NULL 

The function mctrl_gpio_init returns failure if the assignment to any
member of the gpio array results in an error pointer.  So there is no
need to check for such error values in the other functions.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König 2015-05-19 21:56:29 +02:00 committed by Greg Kroah-Hartman
parent c33eecc7ab
commit 445df7ff3f
1 changed files with 2 additions and 3 deletions
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5
drivers/tty/serial/serial_mctrl_gpio.c
View File

@ -49,8 +49,7 @@ void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl)
unsigned int count = 0;
for (i = 0; i < UART_GPIO_MAX; i++)
if (!IS_ERR_OR_NULL(gpios->gpio[i]) &&
mctrl_gpios_desc[i].dir_out) {
if (gpios->gpio[i] && mctrl_gpios_desc[i].dir_out) {
desc_array[count] = gpios->gpio[i];
value_array[count] = !!(mctrl & mctrl_gpios_desc[i].mctrl);
count++;
@ -118,7 +117,7 @@ void mctrl_gpio_free(struct device *dev, struct mctrl_gpios *gpios)
enum mctrl_gpio_idx i;
for (i = 0; i < UART_GPIO_MAX; i++)
if (!IS_ERR_OR_NULL(gpios->gpio[i]))
if (gpios->gpio[i])
devm_gpiod_put(dev, gpios->gpio[i]);
devm_kfree(dev, gpios);
}