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path: root/drivers/watchdog/tangox_wdt.c
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Diffstat (limited to 'drivers/watchdog/tangox_wdt.c')
-rw-r--r--drivers/watchdog/tangox_wdt.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/watchdog/tangox_wdt.c b/drivers/watchdog/tangox_wdt.c
index 709c1ed6fd79..cfbed7e051b6 100644
--- a/drivers/watchdog/tangox_wdt.c
+++ b/drivers/watchdog/tangox_wdt.c
@@ -139,6 +139,10 @@ static int tangox_wdt_probe(struct platform_device *pdev)
return err;
dev->clk_rate = clk_get_rate(dev->clk);
+ if (!dev->clk_rate) {
+ err = -EINVAL;
+ goto err;
+ }
dev->wdt.parent = &pdev->dev;
dev->wdt.info = &tangox_wdt_info;
@@ -171,10 +175,8 @@ static int tangox_wdt_probe(struct platform_device *pdev)
}
err = watchdog_register_device(&dev->wdt);
- if (err) {
- clk_disable_unprepare(dev->clk);
- return err;
- }
+ if (err)
+ goto err;
platform_set_drvdata(pdev, dev);
@@ -187,6 +189,10 @@ static int tangox_wdt_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "SMP86xx/SMP87xx watchdog registered\n");
return 0;
+
+ err:
+ clk_disable_unprepare(dev->clk);
+ return err;
}
static int tangox_wdt_remove(struct platform_device *pdev)