[PATCH 2/2] watchdog: bcm7038: Check the return value from clk_prepare_enable()

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <fabio.estevam@nxp.com>

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@nxp.com>
---
 drivers/watchdog/bcm7038_wdt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/bcm7038_wdt.c b/drivers/watchdog/bcm7038_wdt.c
index c1b8e534..f88f546 100644
--- a/drivers/watchdog/bcm7038_wdt.c
+++ b/drivers/watchdog/bcm7038_wdt.c
@@ -136,7 +136,9 @@ static int bcm7038_wdt_probe(struct platform_device *pdev)
 	wdt->clk = devm_clk_get(dev, NULL);
 	/* If unable to get clock, use default frequency */
 	if (!IS_ERR(wdt->clk)) {
-		clk_prepare_enable(wdt->clk);
+		err = clk_prepare_enable(wdt->clk);
+		if (err)
+			return err;
 		wdt->rate = clk_get_rate(wdt->clk);
 		/* Prevent divide-by-zero exception */
 		if (!wdt->rate)
-- 
2.7.4