Fixed a memory leak and the bug that could result in "pick one" menu fields and a

white desktop preview background: it happened if the attribute containing the data
couldn't be read or unflattened.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19948 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/preferences/backgrounds/BackgroundImage.cpp

@@ -88,7 +88,7 @@ BackgroundImage::GetBackgroundImage(const BNode *node, bool isDesktop,
 	delete [] buffer;
 
 	if (error != B_OK)
-		return NULL;
+		return result;
 
 	PRINT_OBJECT(container);