From 375bfca3459db1c5596c28c56d2ebac26e51c7b3 Mon Sep 17 00:00:00 2001
From: Alice Ferrazzi <alice.ferrazzi@miraclelinux.com>
Date: Tue, 5 Feb 2019 03:33:28 +0900
Subject: [PATCH] livepatch: core: Return EOPNOTSUPP instead of ENOSYS

As a result of an unsupported operation is better to use EOPNOTSUPP
as error code.
ENOSYS is only used for 'invalid syscall nr' and nothing else.

Signed-off-by: Alice Ferrazzi <alice.ferrazzi@miraclelinux.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
---
 kernel/livepatch/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index adca5cf07f7e..5fc98a1cc3c3 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -1036,7 +1036,7 @@ int klp_enable_patch(struct klp_patch *patch)
 
 	if (!klp_have_reliable_stack()) {
 		pr_err("This architecture doesn't have support for the livepatch consistency model.\n");
-		return -ENOSYS;
+		return -EOPNOTSUPP;
 	}