[PATCH] pwm: Convert pwm-tegra to use devm_clk_get()

From: Axel Lin
Date: Sun Jul 01 2012 - 01:00:51 EST


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

Signed-off-by: Axel Lin <axel.lin@xxxxxxxxx>
---
drivers/pwm/pwm-tegra.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index 472b74e..02ce18d 100644
--- 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
--
1.7.9.5



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