watchdog: booke_wdt: Use infrastructure to check timeout limits

The watchdog infrastructure checks the maximum timeout for us.
Use it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c
index e96b09b135c8faed6b544e522cd58ed446aedeae..04da4b66c75e361d191a0c0faac4fd4010d9d26a 100644 (file)
--- a/drivers/watchdog/booke_wdt.c
+++ b/drivers/watchdog/booke_wdt.c
@@ -186,8 +186,6 @@ static int booke_wdt_stop(struct watchdog_device *wdog)
 static int booke_wdt_set_timeout(struct watchdog_device *wdt_dev,
                                 unsigned int timeout)
 {
-       if (timeout > MAX_WDT_TIMEOUT)
-               return -EINVAL;
        wdt_dev->timeout = timeout;
        booke_wdt_set(wdt_dev);
 
@@ -211,7 +209,6 @@ static struct watchdog_device booke_wdt_dev = {
        .info = &booke_wdt_info,
        .ops = &booke_wdt_ops,
        .min_timeout = 1,
-       .max_timeout = 0xFFFF
 };
 
 static void __exit booke_wdt_exit(void)
@@ -229,6 +226,7 @@ static int __init booke_wdt_init(void)
        booke_wdt_set_timeout(&booke_wdt_dev,
                              period_to_sec(booke_wdt_period));
        watchdog_set_nowayout(&booke_wdt_dev, nowayout);
+       booke_wdt_dev.max_timeout = MAX_WDT_TIMEOUT;
        if (booke_wdt_enabled)
                booke_wdt_start(&booke_wdt_dev);