From 96aa99cded0096bd6c6ea2919e6884c54c80f095 Mon Sep 17 00:00:00 2001
From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Fri, 10 May 2019 20:06:48 +0200
Subject: [PATCH] efi_loader: error code in UninstallProtocolInterface()

According to the UEFI specification UninstallProtocolInteface() has to
return EFI_NOT_FOUND if the interface is not found.

Correct the return value.

Cf. UEFI SCT II spec (2017), 3.3.2 UninstallProtocolInterface(), 5.1.3.2.4

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
 lib/efi_loader/efi_boottime.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index b8589b9531..b583ac6a42 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -514,7 +514,7 @@ efi_status_t efi_remove_protocol(const efi_handle_t handle,
 	if (ret != EFI_SUCCESS)
 		return ret;
 	if (handler->protocol_interface != protocol_interface)
-		return EFI_INVALID_PARAMETER;
+		return EFI_NOT_FOUND;
 	list_del(&handler->link);
 	free(handler);
 	return EFI_SUCCESS;
-- 
2.39.5