rtc: s3c: add missing clk control

It's missed to call clk_unprepare() about info->rtc_src_clk in
s3c_rtc_remove and to call clk_disable_unprepare about info->rtc_clk in
error routine of s3c_rtc_probe.

Change-Id: Ia338db2dd1be2d9fc21d3455f91fba1dbff01a89
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 76cbad7a99d34d4bd6d1cb2baca98e08fc3264a7..d67a23b6f5939024ed3f34c576707c43f7b5890e 100644 (file)
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -410,6 +410,8 @@ static int s3c_rtc_remove(struct platform_device *pdev)
 
        s3c_rtc_setaie(info->dev, 0);
 
+       if (info->data->needs_src_clk)
+               clk_unprepare(info->rtc_src_clk);
        clk_unprepare(info->rtc_clk);
        info->rtc_clk = NULL;
 
@@ -482,6 +484,7 @@ static int s3c_rtc_probe(struct platform_device *pdev)
                if (IS_ERR(info->rtc_src_clk)) {
                        dev_err(&pdev->dev,
                                "failed to find rtc source clock\n");
+                       clk_disable_unprepare(info->rtc_clk);
                        return PTR_ERR(info->rtc_src_clk);
                }
                clk_prepare_enable(info->rtc_src_clk);