diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c
index d89056e..a150198 100644
--- a/net/atm/ioctl.c
+++ b/net/atm/ioctl.c
@@ -105,17 +105,35 @@
 			if (!error)
 				sock->state = SS_CONNECTED;
 			goto done;
-		default:
+		case ATM_SETBACKEND:
+		case ATM_NEWBACKENDIF:
+			{
+				atm_backend_t backend;
+				error = get_user(backend, (atm_backend_t __user *) argp);
+				if (error)
+					goto done;
+				switch (backend) {
+					case ATM_BACKEND_PPP:
+						request_module("pppoatm");
+						break;
+					case ATM_BACKEND_BR2684:
+						request_module("br2684");
+						break;
+				}
+			}
+			break;
+		case ATMMPC_CTRL:
+		case ATMMPC_DATA:
+			request_module("mpoa");
+			break;
+		case ATMARPD_CTRL:
+			request_module("clip");
+			break;
+		case ATMLEC_CTRL:
+			request_module("lec");
 			break;
 	}
 
-	if (cmd == ATMMPC_CTRL || cmd == ATMMPC_DATA)
-		request_module("mpoa");
-	if (cmd == ATMARPD_CTRL)
-		request_module("clip");
-	if (cmd == ATMLEC_CTRL)
-		request_module("lec");
-
 	error = -ENOIOCTLCMD;
 
 	down(&ioctl_mutex);