sock_diag: off by one checks

These tests are off by one because sock_diag_handlers[] only has AF_MAX
elements.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index fbaf01ce12f21def454a91a3098a9dafecc384cb..9c27bcda59be193e30341074939cd42899cd5d1b 100644 (file)
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -32,7 +32,7 @@ int sock_diag_register(struct sock_diag_handler *hndl)
 {
        int err = 0;
 
-       if (hndl->family > AF_MAX)
+       if (hndl->family >= AF_MAX)
                return -EINVAL;
 
        mutex_lock(&sock_diag_table_mutex);
@@ -50,7 +50,7 @@ void sock_diag_unregister(struct sock_diag_handler *hnld)
 {
        int family = hnld->family;
 
-       if (family > AF_MAX)
+       if (family >= AF_MAX)
                return;
 
        mutex_lock(&sock_diag_table_mutex);