From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Sat, 16 Feb 2019 14:36:33 +0000 (+0100)
Subject: efi_loader: do not miss last relocation block
X-Git-Url: http://git.dujemihanovic.xyz/%22http:/www.sics.se/static/%7B%7B%20%24image.RelPermalink%20%7D%7D?a=commitdiff_plain;h=997fc12ec91eccf6b7485565864f3eb8ce74def2;p=u-boot.git

efi_loader: do not miss last relocation block

If the last block in the relocation table contains only a single
relocation, the current coding ignores it.

Fix the determination of the end of the relocation table.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---

diff --git a/lib/efi_loader/efi_image_loader.c b/lib/efi_loader/efi_image_loader.c
index cec17eabaa..fe66e7b9ff 100644
--- a/lib/efi_loader/efi_image_loader.c
+++ b/lib/efi_loader/efi_image_loader.c
@@ -111,7 +111,7 @@ static efi_status_t efi_loader_relocate(const IMAGE_BASE_RELOCATION *rel,
 		return EFI_SUCCESS;
 
 	end = (const IMAGE_BASE_RELOCATION *)((const char *)rel + rel_size);
-	while (rel < end - 1 && rel->SizeOfBlock) {
+	while (rel < end && rel->SizeOfBlock) {
 		const uint16_t *relocs = (const uint16_t *)(rel + 1);
 		i = (rel->SizeOfBlock - sizeof(*rel)) / sizeof(uint16_t);
 		while (i--) {