From 4a04699258764201f3f5dffbd974740c4e4e5603 Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Thu, 14 Jan 2010 19:14:04 +0100
Subject: [PATCH] Fix a mistake with size calculation

---
 lib/relocator.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/relocator.c b/lib/relocator.c
index 090a6c7e3..b7fe404c3 100644
--- a/lib/relocator.c
+++ b/lib/relocator.c
@@ -308,12 +308,12 @@ malloc_in_range (struct grub_relocator *rel,
 
     if (best_addr - (grub_addr_t) hb >= sizeof (*hb))
       {
-	hb->size = (best_addr - (grub_addr_t) hb) >> GRUB_MM_ALIGN_LOG2;
+	hb->size = ((best_addr - (grub_addr_t) hb) >> GRUB_MM_ALIGN_LOG2) - 1;
 	if (foll)
 	  {
 	    foll->next = hb;
 	    hbp->next = foll;
-	    if (rb->first == hbp)
+	    if (rb->first == hb)
 	      rb->first = foll;
 	  }
       }