Fix Fedora-19 Segmentation fault, bugid 968817.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/fe-gtk/xtext.c b/src/fe-gtk/xtext.c
index 41fb9fdd..7867342f 100644
--- a/src/fe-gtk/xtext.c
+++ b/src/fe-gtk/xtext.c
@@ -1780,6 +1780,12 @@ gtk_xtext_scrolldown_timeout (GtkXText * xtext)
 	GtkAdjustment *adj = xtext->adj;
 	textentry *ent;
 
+	if (buf->last_ent_end == NULL)	/* If context has changed */
+	{
+		xtext->scroll_tag = 0;
+		return 0;
+	}
+
 	gdk_window_get_pointer (GTK_WIDGET (xtext)->window, 0, &p_y, 0);
 	gdk_drawable_get_size (GTK_WIDGET (xtext)->window, 0, &win_height);
 
@@ -1821,6 +1827,12 @@ gtk_xtext_scrollup_timeout (GtkXText * xtext)
 	GtkAdjustment *adj = xtext->adj;
 	textentry *ent;
 
+	if (buf->last_ent_start == NULL)	/* If context has changed */
+	{
+		xtext->scroll_tag = 0;
+		return 0;
+	}
+
 	gdk_window_get_pointer (GTK_WIDGET (xtext)->window, 0, &p_y, 0);
 
 	if (p_y < 0 && adj->value >= 0)