pwm: jz4740: Use devm_clk_get()
Using the managed version of clk_get() makes the code a bit shorter and the
error paths less complicated.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c
index a44d890..9c46209 100644
--- a/drivers/pwm/pwm-jz4740.c
+++ b/drivers/pwm/pwm-jz4740.c
@@ -165,13 +165,12 @@
static int jz4740_pwm_probe(struct platform_device *pdev)
{
struct jz4740_pwm_chip *jz4740;
- int ret;
jz4740 = devm_kzalloc(&pdev->dev, sizeof(*jz4740), GFP_KERNEL);
if (!jz4740)
return -ENOMEM;
- jz4740->clk = clk_get(&pdev->dev, "ext");
+ jz4740->clk = devm_clk_get(&pdev->dev, "ext");
if (IS_ERR(jz4740->clk))
return PTR_ERR(jz4740->clk);
@@ -180,29 +179,16 @@
jz4740->chip.npwm = NUM_PWM;
jz4740->chip.base = -1;
- ret = pwmchip_add(&jz4740->chip);
- if (ret < 0) {
- clk_put(jz4740->clk);
- return ret;
- }
-
platform_set_drvdata(pdev, jz4740);
- return 0;
+ return pwmchip_add(&jz4740->chip);
}
static int jz4740_pwm_remove(struct platform_device *pdev)
{
struct jz4740_pwm_chip *jz4740 = platform_get_drvdata(pdev);
- int ret;
- ret = pwmchip_remove(&jz4740->chip);
- if (ret < 0)
- return ret;
-
- clk_put(jz4740->clk);
-
- return 0;
+ return pwmchip_remove(&jz4740->chip);
}
static struct platform_driver jz4740_pwm_driver = {