From ac05e2f2e2c53c375dd873c39dc11e013e2a3df6 Mon Sep 17 00:00:00 2001
From: topjohnwu <topjohnwu@gmail.com>
Date: Tue, 27 Mar 2018 00:45:18 +0800
Subject: [PATCH] Fix tail size calculation

Close #381
---
 native/jni/magiskboot/bootimg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/native/jni/magiskboot/bootimg.c b/native/jni/magiskboot/bootimg.c
index 6a2dad7da..a7030c4bb 100644
--- a/native/jni/magiskboot/bootimg.c
+++ b/native/jni/magiskboot/bootimg.c
@@ -168,7 +168,7 @@ int parse_img(const char *image, boot_img *boot) {
 
 			if (pos < boot->map_size) {
 				boot->tail = head + pos;
-				boot->tail_size = boot->map_size - pos;
+				boot->tail_size = boot->map_size - (boot->tail - boot->map_addr);
 			}
 
 			// Check tail info, currently only for LG Bump and Samsung SEANDROIDENFORCE