Merge branches 'sched/devel', 'sched/cpu-hotplug', 'sched/cpusets' and 'sched/urgent...

[linux-2.6-omap-h63xx.git] / net / bridge / br_ioctl.c

diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index eeee218eed80a9357e2abf5d409e74fcf9423ae6..5bbf07362172fb13733df97ae3d76238e0c7b0a5 100644 (file)
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -188,15 +188,21 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
                return 0;
 
        case BRCTL_SET_BRIDGE_HELLO_TIME:
+       {
+               unsigned long t = clock_t_to_jiffies(args[1]);
                if (!capable(CAP_NET_ADMIN))
                        return -EPERM;
 
+               if (t < HZ)
+                       return -EINVAL;
+
                spin_lock_bh(&br->lock);
-               br->bridge_hello_time = clock_t_to_jiffies(args[1]);
+               br->bridge_hello_time = t;
                if (br_is_root_bridge(br))
                        br->hello_time = br->bridge_hello_time;
                spin_unlock_bh(&br->lock);
                return 0;
+       }
 
        case BRCTL_SET_BRIDGE_MAX_AGE:
                if (!capable(CAP_NET_ADMIN))