Aric Stewart : gdiplus: Avoid dereferencing a potential NULL (Coverity 589) .

[Alexandre Julliard]

Module: wine
Branch: master
Commit: c4e859a678db1440e1357c42f60e620716e383f8
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=c4e859a678db1440e1357c42f60e620716e383f8

Author: Aric Stewart <aric at codeweavers.com>
Date:   Thu Oct 16 09:09:49 2008 -0500

gdiplus: Avoid dereferencing a potential NULL (Coverity 589).

---

 dlls/gdiplus/image.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/dlls/gdiplus/image.c b/dlls/gdiplus/image.c
index 9516d64..ffd270b 100644
--- a/dlls/gdiplus/image.c
+++ b/dlls/gdiplus/image.c
@@ -450,7 +450,9 @@ GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
 
     TRACE("%d %d %d %d %p %p\n", width, height, stride, format, scan0, bitmap);
 
-    if(!bitmap || width <= 0 || height <= 0 || (scan0 && (stride % 4))){
+    if (!bitmap) return InvalidParameter;
+
+    if(width <= 0 || height <= 0 || (scan0 && (stride % 4))){
         *bitmap = NULL;
         return InvalidParameter;
     }