X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fbridge%2Fbr_ioctl.c;h=5bbf07362172fb13733df97ae3d76238e0c7b0a5;hb=e809517f6fa5803a5a1cd56026f0e2190fc13d5c;hp=eeee218eed80a9357e2abf5d409e74fcf9423ae6;hpb=9fec6060d9e48ed7db0dac0e16d0f0f0e615b7f6;p=linux-2.6-omap-h63xx.git

diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index eeee218eed8..5bbf0736217 100644
--- 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))