diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 0a9891e..3bf9045 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -150,7 +150,7 @@
 		goto out;
 
 	/* No partial writes. */
-	length = EINVAL;
+	length = -EINVAL;
 	if (*ppos != 0)
 		goto out;