diff --git a/net/atm/resources.c b/net/atm/resources.c
index 23f45ce6f3510fb1e9b30b58b7e52fac6a456961..0447d5d0b63983b139bda2853eaa9980640dd32d 100644
--- a/net/atm/resources.c
+++ b/net/atm/resources.c
@@ -432,7 +432,7 @@ int atm_dev_ioctl(unsigned int cmd, void __user *arg, int compat)
 			size = dev->ops->ioctl(dev, cmd, buf);
 		}
 		if (size < 0) {
-			error = (size == -ENOIOCTLCMD ? -EINVAL : size);
+			error = (size == -ENOIOCTLCMD ? -ENOTTY : size);
 			goto done;
 		}
 	}