tun: Fix copy/paste error in tun_get_user

Use the right structure while incrementing the offset in tun_get_user.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 8d82511aa1bc..d83ccb8c982b 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -571,7 +571,7 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun,
 
                 if (gso.hdr_len > len)
                         return -EINVAL;
-                offset += sizeof(pi);
+                offset += sizeof(gso);
         }
 
         if ((tun->flags & TUN_TYPE_MASK) == TUN_TAP_DEV) {