diff --git a/drivers/net/wan/c101.c b/drivers/net/wan/c101.c
index c4c8eab8574f..c2cc42f723d5 100644
--- a/drivers/net/wan/c101.c
+++ b/drivers/net/wan/c101.c
@@ -402,7 +402,7 @@ static int __init c101_init(void)
 #ifdef MODULE
 		printk(KERN_INFO "c101: no card initialized\n");
 #endif
-		return -ENOSYS;	/* no parameters specified, abort */
+		return -EINVAL;	/* no parameters specified, abort */
 	}
 
 	printk(KERN_INFO "%s\n", version);
@@ -420,11 +420,11 @@ static int __init c101_init(void)
 			c101_run(irq, ram);
 
 		if (*hw == '\x0')
-			return first_card ? 0 : -ENOSYS;
+			return first_card ? 0 : -EINVAL;
 	}while(*hw++ == ':');
 
 	printk(KERN_ERR "c101: invalid hardware parameters\n");
-	return first_card ? 0 : -ENOSYS;
+	return first_card ? 0 : -EINVAL;
 }