From 7eb1b3d372a53fe9220b9e3b579886db0fe2f897 Mon Sep 17 00:00:00 2001 From: Mika Kukkonen Date: Wed, 21 Dec 2005 18:39:49 -0800 Subject: [VLAN]: Add two missing checks to vlan_ioctl_handler() In vlan_ioctl_handler() the code misses couple checks for error return values. Signed-off-by: Mika Kukkonen Signed-off-by: David S. Miller --- net/8021q/vlan.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'net/8021q') diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 91e412b0ab00..67465b65abe4 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -753,6 +753,8 @@ static int vlan_ioctl_handler(void __user *arg) break; case GET_VLAN_REALDEV_NAME_CMD: err = vlan_dev_get_realdev_name(args.device1, args.u.device2); + if (err) + goto out; if (copy_to_user(arg, &args, sizeof(struct vlan_ioctl_args))) { err = -EFAULT; @@ -761,6 +763,8 @@ static int vlan_ioctl_handler(void __user *arg) case GET_VLAN_VID_CMD: err = vlan_dev_get_vid(args.device1, &vid); + if (err) + goto out; args.u.VID = vid; if (copy_to_user(arg, &args, sizeof(struct vlan_ioctl_args))) { @@ -774,7 +778,7 @@ static int vlan_ioctl_handler(void __user *arg) __FUNCTION__, args.cmd); return -EINVAL; }; - +out: return err; } -- cgit v1.2.3