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>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
index cf61c92f7ecd..22b0348826de 100644
--- 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);