watchdog: imx2_wdt: Disable previously acquired clock on error path
If watchdog_register_device() fails we should disable the previously
acquired wdev->clk clock on error path.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index add1fa0..0bb1a1d 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -291,7 +291,7 @@
ret = watchdog_register_device(wdog);
if (ret) {
dev_err(&pdev->dev, "cannot register watchdog device\n");
- return ret;
+ goto disable_clk;
}
wdev->restart_handler.notifier_call = imx2_restart_handler;
@@ -304,6 +304,10 @@
wdog->timeout, nowayout);
return 0;
+
+disable_clk:
+ clk_disable_unprepare(wdev->clk);
+ return ret;
}
static int __exit imx2_wdt_remove(struct platform_device *pdev)