watchdog: renesas_wdt: avoid (theoretical) type overflow

Because the smallest clock divider we can select is 1, 'clks_per_sec'
must be the same type as 'rate'.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
index cf61c92f7ecd63bce40034e9b7b8d13ed70dc4bf..22b0348826deb107323425e0f330e0c06b352d23 100644 (file)
--- a/drivers/watchdog/renesas_wdt.c
+++ b/drivers/watchdog/renesas_wdt.c
@@ -37,7 +37,7 @@ struct rwdt_priv {
        void __iomem *base;
        struct watchdog_device wdev;
        struct clk *clk;
-       unsigned int clks_per_sec;
+       unsigned long clks_per_sec;
        u8 cks;
 };
 
@@ -112,8 +112,7 @@ static int rwdt_probe(struct platform_device *pdev)
 {
        struct rwdt_priv *priv;
        struct resource *res;
-       unsigned long rate;
-       unsigned int clks_per_sec;
+       unsigned long rate, clks_per_sec;
        int ret, i;
 
        priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);