From: Fabio Estevam <fabio.estevam@xxxxxxx>
clk_prepare_enable() may fail, so we should better check its return value
and propagate it in the case of error.
Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxx>
---
drivers/watchdog/renesas_wdt.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
index cf61c92..ca3dc4c 100644
--- a/drivers/watchdog/renesas_wdt.c
+++ b/drivers/watchdog/renesas_wdt.c
@@ -62,9 +62,13 @@ static int rwdt_init_timeout(struct watchdog_device *wdev)
static int rwdt_start(struct watchdog_device *wdev)
{
+ int ret;
+
struct rwdt_priv *priv = watchdog_get_drvdata(wdev);
- clk_prepare_enable(priv->clk);
+ ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ return ret;
rwdt_write(priv, priv->cks, RWTCSRA);
rwdt_init_timeout(wdev);
--
2.7.4
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