Andrew Nguyen : msvcrt: Fix a possible memory leak in _wpopen if a memory allocation fails.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 9361b61949b19ab9ce636ba76c5a5f3f88920736
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=9361b61949b19ab9ce636ba76c5a5f3f88920736

Author: Andrew Nguyen <anguyen at codeweavers.com>
Date:   Sat Jan 15 02:28:08 2011 -0600

msvcrt: Fix a possible memory leak in _wpopen if a memory allocation fails.

---

 dlls/msvcrt/process.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/dlls/msvcrt/process.c b/dlls/msvcrt/process.c
index 3e2e15e..349efeb 100644
--- a/dlls/msvcrt/process.c
+++ b/dlls/msvcrt/process.c
@@ -1079,7 +1079,12 @@ MSVCRT_FILE* CDECL MSVCRT__wpopen(const MSVCRT_wchar_t* command, const MSVCRT_wc
   if (!(comspec = msvcrt_get_comspec())) goto error;
   len = strlenW(comspec) + strlenW(flag) + strlenW(command) + 1;
 
-  if (!(fullcmd = HeapAlloc(GetProcessHeap(), 0, len * sizeof(MSVCRT_wchar_t)))) goto error;
+  if (!(fullcmd = HeapAlloc(GetProcessHeap(), 0, len * sizeof(MSVCRT_wchar_t))))
+  {
+    HeapFree(GetProcessHeap(), 0, comspec);
+    goto error;
+  }
+
   strcpyW(fullcmd, comspec);
   strcatW(fullcmd, flag);
   strcatW(fullcmd, command);