watchdog: via_wdt: Set min_timeout and max_timeout for wdt_dev

Let the watchdog core to check the valid value range of min_timeout/max_timeout.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/via_wdt.c b/drivers/watchdog/via_wdt.c
index 8b24b00..8f07dd4 100644 (file)
--- a/drivers/watchdog/via_wdt.c
+++ b/drivers/watchdog/via_wdt.c
@@ -124,8 +124,6 @@ static int wdt_stop(struct watchdog_device *wdd)
 static int wdt_set_timeout(struct watchdog_device *wdd,
                           unsigned int new_timeout)
 {
-       if (new_timeout < 1 || new_timeout > WDT_TIMEOUT_MAX)
-               return -EINVAL;
        writel(new_timeout, wdt_mem + VIA_WDT_COUNT);
        timeout = new_timeout;
        return 0;
@@ -150,6 +148,8 @@ static const struct watchdog_ops wdt_ops = {
 static struct watchdog_device wdt_dev = {
        .info =         &wdt_info,
        .ops =          &wdt_ops,
+       .min_timeout =  1,
+       .max_timeout =  WDT_TIMEOUT_MAX,
 };
 
 static int __devinit wdt_probe(struct pci_dev *pdev,