watchdog: ath79_wdt: convert to use devm_clk_get

Use the managed version of clk_get. This allows to
simplify the probe/remove functions a bit.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/ath79_wdt.c b/drivers/watchdog/ath79_wdt.c
index 38a999e..dcd18ec 100644 (file)
--- a/drivers/watchdog/ath79_wdt.c
+++ b/drivers/watchdog/ath79_wdt.c
@@ -229,13 +229,13 @@ static int ath79_wdt_probe(struct platform_device *pdev)
        u32 ctrl;
        int err;
 
-       wdt_clk = clk_get(&pdev->dev, "wdt");
+       wdt_clk = devm_clk_get(&pdev->dev, "wdt");
        if (IS_ERR(wdt_clk))
                return PTR_ERR(wdt_clk);
 
        err = clk_enable(wdt_clk);
        if (err)
-               goto err_clk_put;
+               return err;
 
        wdt_freq = clk_get_rate(wdt_clk);
        if (!wdt_freq) {
@@ -265,8 +265,6 @@ static int ath79_wdt_probe(struct platform_device *pdev)
 
 err_clk_disable:
        clk_disable(wdt_clk);
-err_clk_put:
-       clk_put(wdt_clk);
        return err;
 }
 
@@ -274,7 +272,6 @@ static int ath79_wdt_remove(struct platform_device *pdev)
 {
        misc_deregister(&ath79_wdt_miscdev);
        clk_disable(wdt_clk);
-       clk_put(wdt_clk);
        return 0;
 }