serial: max310x: Add missing mutex_destroy() on driver exit

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 2a12cbcbf38844dc10c6447a03ea9a30699bd019..c180576546ed5055bc021ed1f7703040dbc593c7 100644 (file)
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1134,8 +1134,6 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype,
        s->devtype = devtype;
        dev_set_drvdata(dev, s);
 
-       mutex_init(&s->mutex);
-
        /* Check device to ensure we are talking to what we expect */
        ret = devtype->detect(dev);
        if (ret)
@@ -1193,6 +1191,8 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype,
                goto out_uart;
 #endif
 
+       mutex_init(&s->mutex);
+
        for (i = 0; i < devtype->nr; i++) {
                /* Initialize port data */
                s->p[i].port.line       = i;
@@ -1233,6 +1233,8 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype,
 
        dev_err(dev, "Unable to reguest IRQ %i\n", irq);
 
+       mutex_destroy(&s->mutex);
+
 #ifdef CONFIG_GPIOLIB
        WARN_ON(gpiochip_remove(&s->gpio));
 #endif
@@ -1264,6 +1266,7 @@ static int max310x_remove(struct device *dev)
                s->devtype->power(&s->p[i].port, 0);
        }
 
+       mutex_destroy(&s->mutex);
        uart_unregister_driver(&s->uart);
        clk_disable_unprepare(s->clk);