diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 1ddd36d..5f6ae79 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1859,7 +1859,7 @@
 		}
 
 		default:
-			err = dev_ioctl(cmd, (void __user *)arg);
+			err = -ENOIOCTLCMD;
 			break;
 	}
 	return err;