diff options
Diffstat (limited to 'drivers/watchdog/hpwdt.c')
| -rw-r--r-- | drivers/watchdog/hpwdt.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index a5d36ae350d..00299919df3 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -36,6 +36,8 @@ #define HPWDT_VERSION "1.1.1" #define SECS_TO_TICKS(secs) ((secs) * 1000 / 128) +#define TICKS_TO_SECS(ticks) ((ticks) * 128 / 1000) +#define HPWDT_MAX_TIMER TICKS_TO_SECS(65535) #define DEFAULT_MARGIN 30 static unsigned int soft_margin = DEFAULT_MARGIN; /* in seconds */ @@ -432,8 +434,7 @@ static void hpwdt_ping(void) static int hpwdt_change_timer(int new_margin) { - /* Arbitrary, can't find the card's limits */ - if (new_margin < 5 || new_margin > 600) { + if (new_margin < 1 || new_margin > HPWDT_MAX_TIMER) { printk(KERN_WARNING "hpwdt: New value passed in is invalid: %d seconds.\n", new_margin); |