pwm: Convert pwm-tegra to use devm_clk_get()

Also return proper error in tegra_pwm_remove() if pwmchip_remove()
fails.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>

diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index 472b74e..02ce18d 100644 (file)
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -194,7 +194,7 @@ static int tegra_pwm_probe(struct platform_device *pdev)
 
        platform_set_drvdata(pdev, pwm);
 
-       pwm->clk = clk_get(&pdev->dev, NULL);
+       pwm->clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(pwm->clk))
                return PTR_ERR(pwm->clk);
 
@@ -206,7 +206,6 @@ static int tegra_pwm_probe(struct platform_device *pdev)
        ret = pwmchip_add(&pwm->chip);
        if (ret < 0) {
                dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret);
-               clk_put(pwm->clk);
                return ret;
        }
 
@@ -233,10 +232,7 @@ static int __devexit tegra_pwm_remove(struct platform_device *pdev)
                clk_disable_unprepare(pc->clk);
        }
 
-       pwmchip_remove(&pc->chip);
-       clk_put(pc->clk);
-
-       return 0;
+       return pwmchip_remove(&pc->chip);
 }
 
 #ifdef CONFIG_OF