[evolution/gnome-3-18] EHTMLEditorView - Don't check for links if we cannot obtain valid block

[Tomas Popela <tpopela src gnome org>]

commit bfb3cf784fac0ea0c41f316f9c2cfa1912ce04dd
Author: Tomas Popela <tpopela redhat com>
Date:   Sun Dec 6 13:35:02 2015 +0100

    EHTMLEditorView - Don't check for links if we cannot obtain valid block

 e-util/e-html-editor-view.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/e-util/e-html-editor-view.c b/e-util/e-html-editor-view.c
index a2af9a5..e513dd9 100644
--- a/e-util/e-html-editor-view.c
+++ b/e-util/e-html-editor-view.c
@@ -1458,7 +1458,9 @@ html_editor_view_check_magic_links (EHTMLEditorView *view,
 
                block = e_html_editor_get_parent_block_node_from_child (node);
                /* Get previous block */
-               block = webkit_dom_node_get_previous_sibling (block);
+               if (!(block = webkit_dom_node_get_previous_sibling (block)))
+                       return;
+
                /* If block is quoted content, get the last block there */
                while (block && WEBKIT_DOM_IS_HTML_QUOTE_ELEMENT (block))
                        block = webkit_dom_node_get_last_child (block);