gdiplus: Fix a GdipSetPageScale return status.

dlls/gdiplus/graphics.c

@@ -6164,12 +6164,15 @@ GpStatus WINGDIPAPI GdipSetPageScale(GpGraphics *graphics, REAL scale)
 
     TRACE("(%p, %.2f)\n", graphics, scale);
 
-    if(!graphics || (scale <= 0.0))
+    if(!graphics)
         return InvalidParameter;
 
     if(graphics->busy)
         return ObjectBusy;
 
+    if(scale <= 0.0)
+        return InvalidParameter;
+
     if (is_metafile_graphics(graphics))
     {
         stat = METAFILE_SetPageTransform((GpMetafile*)graphics->image, graphics->unit, scale);

dlls/gdiplus/tests/graphics.c

@@ -1847,7 +1847,6 @@ static void test_Get_Release_DC(void)
     status = GdipSetPageScale(graphics, 1.0);
     expect(ObjectBusy, status);
     status = GdipSetPageScale(graphics, 0.0);
-    todo_wine
     expect(ObjectBusy, status);
     status = GdipSetPageUnit(graphics, UnitWorld);
     expect(ObjectBusy, status);