Added an extra validation in gdk_pixbuf_loader_set_size()

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=380196

diff --git a/gdk-pixbuf/gdk-pixbuf-loader.c b/gdk-pixbuf/gdk-pixbuf-loader.c
index 9ef23c1ad0f065074af1347ab38ffd78c1a3b85c..6b7b547971f60f3856ebbbea483ead7d876abd54 100644 (file)
--- a/gdk-pixbuf/gdk-pixbuf-loader.c
+++ b/gdk-pixbuf/gdk-pixbuf-loader.c
@@ -221,9 +221,13 @@ gdk_pixbuf_loader_set_size (GdkPixbufLoader *loader,
                            gint             width,
                            gint             height)
 {
-        GdkPixbufLoaderPrivate *priv = GDK_PIXBUF_LOADER (loader)->priv;
+        GdkPixbufLoaderPrivate *priv;
+
+        g_return_if_fail (GDK_IS_PIXBUF_LOADER (loader));
         g_return_if_fail (width >= 0 && height >= 0);
 
+        priv = GDK_PIXBUF_LOADER (loader)->priv;
+
         if (!priv->size_fixed) 
                 {
                         priv->width = width;