[gtk+] gail: don't try to get stock id from images that aren't stock

[William Jon McCann <mccann src gnome org>]

commit cadbdd32ba9c610b28fb45dd5d6fd8f2a4c040f2
Author: William Jon McCann <jmccann redhat com>
Date:   Thu Oct 7 02:48:20 2010 -0400

    gail: don't try to get stock id from images that aren't stock
    
    Fixes assertion caused by 41d2a4d059d881d8d05419013ae4946a81b308cb

 modules/other/gail/gailimage.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/modules/other/gail/gailimage.c b/modules/other/gail/gailimage.c
index 38d0c58..da86985 100644
--- a/modules/other/gail/gailimage.c
+++ b/modules/other/gail/gailimage.c
@@ -146,9 +146,11 @@ gail_image_get_name (AtkObject *accessible)
   g_free (image_accessible->stock_name);
   image_accessible->stock_name = NULL;
 
+  if (gtk_image_get_storage_type (image) != GTK_IMAGE_STOCK)
+    return NULL;
+
   gtk_image_get_stock (image, &stock_id, NULL);
-  if (gtk_image_get_storage_type (image) != GTK_IMAGE_STOCK ||
-      stock_id == NULL)
+  if (stock_id == NULL)
     return NULL;
 
   if (!gtk_stock_lookup (stock_id, &stock_item))