Gerald Pfeifer : msvcrt: Fix error handling in _aligned_offset_realloc().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a030777f741e12fbd90d7bb6af3bfc52d06685b2
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=a030777f741e12fbd90d7bb6af...

Author: Gerald Pfeifer 
Date:   Mon Dec  3 22:56:37 2007 +0100

msvcrt: Fix error handling in _aligned_offset_realloc().

---

dlls/msvcrt/heap.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/msvcrt/heap.c b/dlls/msvcrt/heap.c
index 06c9d56..2f7fb9f 100644
--- a/dlls/msvcrt/heap.c
+++ b/dlls/msvcrt/heap.c
@@ -443,13 +443,14 @@ void * CDECL _aligned_offset_realloc(void *memblock, MSVCRT_size_t size,
         /* It seems this function was called with an invalid pointer. Bail out. */
         return NULL;
     }
+
     /* Adjust old_size to get amount of actual data in old block. */
-    old_size -= old_padding;
-    if (old_size < 0)
+    if (old_size < old_padding)
     {
         /* Shouldn't happen. Something's weird, so bail out. */
         return NULL;
     }
+    old_size -= old_padding;

temp = MSVCRT_realloc(*saved, size + alignment + sizeof(void *));