[evolution/gnome-3-16] [Publish Calendar] Disconnect free-busy-data signal handler

[Milan Crha <mcrha src gnome org>]

commit 67b61dac412f28200405195c2f4a60ff1cba9199
Author: Milan Crha <mcrha redhat com>
Date:   Tue Jun 16 08:29:24 2015 +0200

    [Publish Calendar] Disconnect free-busy-data signal handler
    
    Disconnect it when the free/busy query finished, because the ECalClient
    can be left alive longer that in this function, thus the callback could
    be called with already gone memory.

 plugins/publish-calendar/publish-format-fb.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/plugins/publish-calendar/publish-format-fb.c b/plugins/publish-calendar/publish-format-fb.c
index a0cabdd..96f0441 100644
--- a/plugins/publish-calendar/publish-format-fb.c
+++ b/plugins/publish-calendar/publish-format-fb.c
@@ -65,6 +65,7 @@ write_calendar (const gchar *uid,
        icalcomponent *top_level;
        gchar *email = NULL;
        GSList *users = NULL;
+       gulong handler_id;
        gboolean success = FALSE;
 
        utc = icaltimezone_get_utc_timezone ();
@@ -111,12 +112,16 @@ write_calendar (const gchar *uid,
 
        top_level = e_cal_util_new_top_level ();
 
-       g_signal_connect (
+       handler_id = g_signal_connect (
                client, "free-busy-data",
                G_CALLBACK (free_busy_data_cb), &objects);
 
        success = e_cal_client_get_free_busy_sync (
                E_CAL_CLIENT (client), start, end, users, NULL, error);
+
+       if (handler_id > 0)
+               g_signal_handler_disconnect (client, handler_id);
+
        if (success) {
                gchar *ical_string;
                GSList *iter;