Jeff Latimer : shell32: Fix possible dereference of NULL ptr.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f16e2c3a27a1e9bf15c376a8b6a484b3fa18cc10
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=f16e2c3a27a1e9bf15c376a8b6a484b3fa18cc10

Author: Jeff Latimer <lats at yless4u.com.au>
Date:   Sun Jun 10 17:42:50 2007 +1000

shell32: Fix possible dereference of NULL ptr.

---

 dlls/shell32/shelllink.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/dlls/shell32/shelllink.c b/dlls/shell32/shelllink.c
index 0b7094a..aa21a4a 100644
--- a/dlls/shell32/shelllink.c
+++ b/dlls/shell32/shelllink.c
@@ -584,8 +584,12 @@ static HRESULT Stream_LoadString( IStream* stm, BOOL unicode, LPWSTR *pstr )
     {
         count = MultiByteToWideChar( CP_ACP, 0, (LPSTR) temp, len, NULL, 0 );
         str = HeapAlloc( GetProcessHeap(), 0, (count+1)*sizeof (WCHAR) );
-        if( str )
-            MultiByteToWideChar( CP_ACP, 0, (LPSTR) temp, len, str, count );
+        if( !str )
+        {
+            HeapFree( GetProcessHeap(), 0, temp );
+            return E_OUTOFMEMORY;
+        }
+        MultiByteToWideChar( CP_ACP, 0, (LPSTR) temp, len, str, count );
         HeapFree( GetProcessHeap(), 0, temp );
     }
     else