Rob Shearman : dbghelp: nread can be NULL for read_mem and read_mem64.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 3f8215d214c1f5345e3d1c83a1a7ef0bbda454e2
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=3f8215d214c1f5345e3d1c83a1a7ef0bbda454e2

Author: Rob Shearman <rob at codeweavers.com>
Date:   Thu Feb 15 16:24:39 2007 +0000

dbghelp: nread can be NULL for read_mem and read_mem64.

---

 dlls/dbghelp/stack.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/dbghelp/stack.c b/dlls/dbghelp/stack.c
index aec6a2b..10b5612 100644
--- a/dlls/dbghelp/stack.c
+++ b/dlls/dbghelp/stack.c
@@ -62,7 +62,7 @@ static BOOL CALLBACK read_mem(HANDLE hProcess, DWORD addr, void* buffer,
 {
     SIZE_T      r;
     if (!ReadProcessMemory(hProcess, (void*)addr, buffer, size, &r)) return FALSE;
-    *nread = r;
+    if (nread) *nread = r;
     return TRUE;
 }
 
@@ -71,7 +71,7 @@ static BOOL CALLBACK read_mem64(HANDLE hProcess, DWORD64 addr, void* buffer,
 {
     SIZE_T      r;
     if (!ReadProcessMemory(hProcess, (void*)(DWORD_PTR)addr, buffer, size, &r)) return FALSE;
-    *nread = r;
+    if (nread) *nread = r;
     return TRUE;
 }