gpio: tc3589x: use managed resources
Grab state container and irq using the devm_* functions and save
some lines of hairy clean-up code.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index 1019320..113e50c 100644
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -329,7 +329,8 @@
if (irq < 0)
return irq;
- tc3589x_gpio = kzalloc(sizeof(struct tc3589x_gpio), GFP_KERNEL);
+ tc3589x_gpio = devm_kzalloc(&pdev->dev, sizeof(struct tc3589x_gpio),
+ GFP_KERNEL);
if (!tc3589x_gpio)
return -ENOMEM;
@@ -354,23 +355,25 @@
ret = tc3589x_set_bits(tc3589x, TC3589x_RSTCTRL,
TC3589x_RSTCTRL_GPIRST, 0);
if (ret < 0)
- goto out_free;
+ return ret;
ret = tc3589x_gpio_irq_init(tc3589x_gpio, np);
if (ret)
- goto out_free;
+ return ret;
- ret = request_threaded_irq(irq, NULL, tc3589x_gpio_irq, IRQF_ONESHOT,
- "tc3589x-gpio", tc3589x_gpio);
+ ret = devm_request_threaded_irq(&pdev->dev,
+ irq, NULL, tc3589x_gpio_irq,
+ IRQF_ONESHOT, "tc3589x-gpio",
+ tc3589x_gpio);
if (ret) {
dev_err(&pdev->dev, "unable to get irq: %d\n", ret);
- goto out_free;
+ return ret;
}
ret = gpiochip_add(&tc3589x_gpio->chip);
if (ret) {
dev_err(&pdev->dev, "unable to add gpiochip: %d\n", ret);
- goto out_freeirq;
+ return ret;
}
if (pdata && pdata->setup)
@@ -379,12 +382,6 @@
platform_set_drvdata(pdev, tc3589x_gpio);
return 0;
-
-out_freeirq:
- free_irq(irq, tc3589x_gpio);
-out_free:
- kfree(tc3589x_gpio);
- return ret;
}
static int tc3589x_gpio_remove(struct platform_device *pdev)
@@ -392,7 +389,6 @@
struct tc3589x_gpio *tc3589x_gpio = platform_get_drvdata(pdev);
struct tc3589x *tc3589x = tc3589x_gpio->tc3589x;
struct tc3589x_gpio_platform_data *pdata = tc3589x->pdata->gpio;
- int irq = platform_get_irq(pdev, 0);
int ret;
if (pdata && pdata->remove)
@@ -405,10 +401,6 @@
return ret;
}
- free_irq(irq, tc3589x_gpio);
-
- kfree(tc3589x_gpio);
-
return 0;
}