drivers/rtc/rtc-wm831x.c: convert to devm_kzalloc()

Marginally less code and eliminate the possibility of memory leaks.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/rtc/rtc-wm831x.c b/drivers/rtc/rtc-wm831x.c
index dabbd45..657c6f6 100644 (file)
--- a/drivers/rtc/rtc-wm831x.c
+++ b/drivers/rtc/rtc-wm831x.c
@@ -399,7 +399,7 @@ static int wm831x_rtc_probe(struct platform_device *pdev)
        int alm_irq = platform_get_irq_byname(pdev, "ALM");
        int ret = 0;
 
-       wm831x_rtc = kzalloc(sizeof(*wm831x_rtc), GFP_KERNEL);
+       wm831x_rtc = devm_kzalloc(&pdev->dev, sizeof(*wm831x_rtc), GFP_KERNEL);
        if (wm831x_rtc == NULL)
                return -ENOMEM;
 
@@ -434,7 +434,6 @@ static int wm831x_rtc_probe(struct platform_device *pdev)
        return 0;
 
 err:
-       kfree(wm831x_rtc);
        return ret;
 }
 
@@ -445,7 +444,6 @@ static int __devexit wm831x_rtc_remove(struct platform_device *pdev)
 
        free_irq(alm_irq, wm831x_rtc);
        rtc_device_unregister(wm831x_rtc->rtc);
-       kfree(wm831x_rtc);
 
        return 0;
 }