[evolution-data-server/gnome-3-16] [e-cal-recur.c] Do not write out of bounds of the weekdays array

[Milan Crha <mcrha src gnome org>]

commit 9260aada355b7b1d55fb77789d1a5bddd9d3dd07
Author: Milan Crha <mcrha redhat com>
Date:   Thu Aug 6 14:44:51 2015 +0200

    [e-cal-recur.c] Do not write out of bounds of the weekdays array

 calendar/libecal/e-cal-recur.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/calendar/libecal/e-cal-recur.c b/calendar/libecal/e-cal-recur.c
index b8857d2..142380d 100644
--- a/calendar/libecal/e-cal-recur.c
+++ b/calendar/libecal/e-cal-recur.c
@@ -1947,6 +1947,9 @@ cal_obj_initialize_recur_data (RecurData *recur_data,
                weekday = GPOINTER_TO_INT (elem->data);
                recur_data->weekdays[weekday] = 1;
                elem = elem->next;
+               /* the second element is week_num, skip it */
+               if (elem)
+                       elem = elem->next;
        }
 
        /* Create an array of hours from byhour for fast lookup. */