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-rw-r--r--drivers/char/watchdog/iTCO_wdt.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/char/watchdog/iTCO_wdt.c b/drivers/char/watchdog/iTCO_wdt.c
index 505aae91776..b6f29cb8bd3 100644
--- a/drivers/char/watchdog/iTCO_wdt.c
+++ b/drivers/char/watchdog/iTCO_wdt.c
@@ -368,7 +368,8 @@ static int iTCO_wdt_get_timeleft (int *time_left)
spin_unlock(&iTCO_wdt_private.io_lock);
*time_left = (val8 * 6) / 10;
- }
+ } else
+ return -EINVAL;
return 0;
}
@@ -439,7 +440,6 @@ static int iTCO_wdt_ioctl (struct inode *inode, struct file *file,
{
int new_options, retval = -EINVAL;
int new_heartbeat;
- int time_left;
void __user *argp = (void __user *)arg;
int __user *p = argp;
static struct watchdog_info ident = {
@@ -499,6 +499,8 @@ static int iTCO_wdt_ioctl (struct inode *inode, struct file *file,
case WDIOC_GETTIMELEFT:
{
+ int time_left;
+
if (iTCO_wdt_get_timeleft(&time_left))
return -EINVAL;