* New upstream release.

  * Fix several memory leaks (LP: #772340, LP: #957320)

6 files changed, 154 insertions, 90 deletions

diff --git a/ChangeLog b/ChangeLog
index d5ab872..09fa847 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,57 @@
 # Generated by Makefile. Do not edit.
 
+2012-03-21  Charles Kerr  <charles.kerr@canonical.com>
+
+	0.3.92
+
+2012-03-20  Charles Kerr  <charles.kerr@canonical.com>
+
+	merge lp:~charlesk/indicator-datetime/lp-772340 to fix some memory leaks related to appointments in indicator-datetime
+
+2012-03-18  Charles Kerr  <charles.kerr@canonical.com>
+
+	leak: fix ESourceList leak in update_appointment_menu_items()
+
+2012-03-18  Charles Kerr  <charles.kerr@canonical.com>
+
+	leak: fix GdkPixbuf leak when setting up appointments
+
+2012-03-18  Charles Kerr  <charles.kerr@canonical.com>
+
+	minor: fix inefficient GSList walking -- only walk a GSList once instead of twice per node
+
+2012-03-18  Charles Kerr  <charles.kerr@canonical.com>
+
+	leak: fix the comp_instance struct leaks allocated in populate_appointment_instances() from update_appointment_menu_items(). The list was freed, but not the structs pointed to by the list.
+
+2012-03-18  Charles Kerr  <charles.kerr@canonical.com>
+
+	don't subtract one time_t from another
+
+2012-03-18  Charles Kerr  <charles.kerr@canonical.com>
+
+	leak: plug leaks related to use of gconf_client_get_list()
+
+2012-03-18  Charles Kerr  <charles.kerr@canonical.com>
+
+	minor: use g_clear_error() instead of g_error_free()
+
+2012-03-18  Charles Kerr  <charles.kerr@canonical.com>
+
+	leak: fix GError leaks
+
+2012-03-16  Charles Kerr  <charles.kerr@canonical.com>
+
+	plug a string leak when updating the appointments
+
+2012-03-16  Charles Kerr  <charles.kerr@canonical.com>
+
+	minor: remove unnecessary nesting
+
+2012-03-16  Charles Kerr  <charles.kerr@canonical.com>
+
+	plug a string leak when updating appointments
+
 2012-03-08  Ted Gould  <ted@gould.cx>
 
 	0.3.91
diff --git a/configure b/configure
index 714572e..7619854 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.68 for indicator-datetime 0.3.91.
+# Generated by GNU Autoconf 2.68 for indicator-datetime 0.3.92.
 #
 # Report bugs to <http://bugs.launchpad.net/indicator-datetime>.
 #
@@ -572,8 +572,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='indicator-datetime'
 PACKAGE_TARNAME='indicator-datetime'
-PACKAGE_VERSION='0.3.91'
-PACKAGE_STRING='indicator-datetime 0.3.91'
+PACKAGE_VERSION='0.3.92'
+PACKAGE_STRING='indicator-datetime 0.3.92'
 PACKAGE_BUGREPORT='http://bugs.launchpad.net/indicator-datetime'
 PACKAGE_URL='http://launchpad.net/indicator-datetime'
 
@@ -1395,7 +1395,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures indicator-datetime 0.3.91 to adapt to many kinds of systems.
+\`configure' configures indicator-datetime 0.3.92 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1466,7 +1466,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of indicator-datetime 0.3.91:";;
+     short | recursive ) echo "Configuration of indicator-datetime 0.3.92:";;
    esac
   cat <<\_ACEOF
 
@@ -1600,7 +1600,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-indicator-datetime configure 0.3.91
+indicator-datetime configure 0.3.92
 generated by GNU Autoconf 2.68
 
 Copyright (C) 2010 Free Software Foundation, Inc.
@@ -1971,7 +1971,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by indicator-datetime $as_me 0.3.91, which was
+It was created by indicator-datetime $as_me 0.3.92, which was
 generated by GNU Autoconf 2.68.  Invocation command line was
 
   $ $0 $@
@@ -2795,7 +2795,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='indicator-datetime'
- VERSION='0.3.91'
+ VERSION='0.3.92'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -13205,14 +13205,12 @@ case "$am__api_version" in
     ;;
 esac
 
+INTLTOOL_REQUIRED_VERSION_AS_INT=`echo 0.41.0 | awk -F. '{ print $ 1 * 1000 + $ 2 * 100 + $ 3; }'`
+INTLTOOL_APPLIED_VERSION=`intltool-update --version | head -1 | cut -d" " -f3`
+INTLTOOL_APPLIED_VERSION_AS_INT=`echo $INTLTOOL_APPLIED_VERSION | awk -F. '{ print $ 1 * 1000 + $ 2 * 100 + $ 3; }'`
 if test -n "0.41.0"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for intltool >= 0.41.0" >&5
 $as_echo_n "checking for intltool >= 0.41.0... " >&6; }
-
-    INTLTOOL_REQUIRED_VERSION_AS_INT=`echo 0.41.0 | awk -F. '{ print $ 1 * 1000 + $ 2 * 100 + $ 3; }'`
-    INTLTOOL_APPLIED_VERSION=`intltool-update --version | head -1 | cut -d" " -f3`
-    INTLTOOL_APPLIED_VERSION_AS_INT=`echo $INTLTOOL_APPLIED_VERSION | awk -F. '{ print $ 1 * 1000 + $ 2 * 100 + $ 3; }'`
-
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: $INTLTOOL_APPLIED_VERSION found" >&5
 $as_echo "$INTLTOOL_APPLIED_VERSION found" >&6; }
     test "$INTLTOOL_APPLIED_VERSION_AS_INT" -ge "$INTLTOOL_REQUIRED_VERSION_AS_INT" ||
@@ -13373,7 +13371,11 @@ INTLTOOL_DIRECTORY_RULE='%.directory: %.directory.in $(INTLTOOL_MERGE) $(wildcar
 INTLTOOL_SOUNDLIST_RULE='%.soundlist: %.soundlist.in $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -d -u -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< $@'
        INTLTOOL_UI_RULE='%.ui:        %.ui.in        $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< $@'
       INTLTOOL_XML_RULE='%.xml:       %.xml.in       $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< $@'
+if test "$INTLTOOL_APPLIED_VERSION_AS_INT" -ge 5000; then
       INTLTOOL_XML_NOMERGE_RULE='%.xml:       %.xml.in       $(INTLTOOL_MERGE) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u --no-translations $< $@'
+else
+      INTLTOOL_XML_NOMERGE_RULE='%.xml:       %.xml.in       $(INTLTOOL_MERGE) ; $(INTLTOOL_V_MERGE)_it_tmp_dir=tmp.intltool.$$RANDOM && mkdir $$_it_tmp_dir && LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u $$_it_tmp_dir $< $@ && rmdir $$_it_tmp_dir'
+fi
       INTLTOOL_XAM_RULE='%.xam:       %.xml.in       $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< $@'
       INTLTOOL_KBD_RULE='%.kbd:       %.kbd.in       $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u -m -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< $@'
     INTLTOOL_CAVES_RULE='%.caves:     %.caves.in     $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -d -u -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< $@'
@@ -15041,7 +15043,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by indicator-datetime $as_me 0.3.91, which was
+This file was extended by indicator-datetime $as_me 0.3.92, which was
 generated by GNU Autoconf 2.68.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -15108,7 +15110,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-indicator-datetime config.status 0.3.91
+indicator-datetime config.status 0.3.92
 configured by $0, generated by GNU Autoconf 2.68,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index f033f41..6377b9a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_INIT([indicator-datetime],
-        [0.3.91],
+        [0.3.92],
         [http://bugs.launchpad.net/indicator-datetime],
         [indicator-datetime],
         [http://launchpad.net/indicator-datetime])
diff --git a/debian/changelog b/debian/changelog
index 7a1de4c..619b9eb 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+indicator-datetime (0.3.92-0ubuntu1~ppa1) UNRELEASED; urgency=low
+
+  * New upstream release.
+    * Fix several memory leaks (LP: #772340, LP: #957320)
+
+ -- Charles Kerr <charles.kerr@canonical.com>  Wed, 21 Mar 2012 11:17:15 -0500
+
 indicator-datetime (0.3.91-0ubuntu1) precise; urgency=low
 
   * New upstream release.
diff --git a/m4/intltool.m4 b/m4/intltool.m4
index 0c04c06..33353ed 100644
--- a/m4/intltool.m4
+++ b/m4/intltool.m4
@@ -23,7 +23,7 @@
 ## the same distribution terms that you use for the rest of that program.
 
 dnl IT_PROG_INTLTOOL([MINIMUM-VERSION], [no-xml])
-# serial 41 IT_PROG_INTLTOOL
+# serial 42 IT_PROG_INTLTOOL
 AC_DEFUN([IT_PROG_INTLTOOL], [
 AC_PREREQ([2.50])dnl
 AC_REQUIRE([AM_NLS])dnl
@@ -36,13 +36,11 @@ case "$am__api_version" in
     ;;
 esac
 
+INTLTOOL_REQUIRED_VERSION_AS_INT=`echo $1 | awk -F. '{ print $ 1 * 1000 + $ 2 * 100 + $ 3; }'`
+INTLTOOL_APPLIED_VERSION=`intltool-update --version | head -1 | cut -d" " -f3`
+INTLTOOL_APPLIED_VERSION_AS_INT=`echo $INTLTOOL_APPLIED_VERSION | awk -F. '{ print $ 1 * 1000 + $ 2 * 100 + $ 3; }'`
 if test -n "$1"; then
     AC_MSG_CHECKING([for intltool >= $1])
-
-    INTLTOOL_REQUIRED_VERSION_AS_INT=`echo $1 | awk -F. '{ print $ 1 * 1000 + $ 2 * 100 + $ 3; }'`
-    INTLTOOL_APPLIED_VERSION=`intltool-update --version | head -1 | cut -d" " -f3`
-    [INTLTOOL_APPLIED_VERSION_AS_INT=`echo $INTLTOOL_APPLIED_VERSION | awk -F. '{ print $ 1 * 1000 + $ 2 * 100 + $ 3; }'`
-    ]
     AC_MSG_RESULT([$INTLTOOL_APPLIED_VERSION found])
     test "$INTLTOOL_APPLIED_VERSION_AS_INT" -ge "$INTLTOOL_REQUIRED_VERSION_AS_INT" ||
 	AC_MSG_ERROR([Your intltool is too old.  You need intltool $1 or later.])
@@ -85,7 +83,11 @@ INTLTOOL_DIRECTORY_RULE='%.directory: %.directory.in $(INTLTOOL_MERGE) $(wildcar
 INTLTOOL_SOUNDLIST_RULE='%.soundlist: %.soundlist.in $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -d -u -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< [$]@' 
        INTLTOOL_UI_RULE='%.ui:        %.ui.in        $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< [$]@' 
       INTLTOOL_XML_RULE='%.xml:       %.xml.in       $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< [$]@' 
+if test "$INTLTOOL_APPLIED_VERSION_AS_INT" -ge 5000; then
       INTLTOOL_XML_NOMERGE_RULE='%.xml:       %.xml.in       $(INTLTOOL_MERGE) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u --no-translations $< [$]@'
+else
+      INTLTOOL_XML_NOMERGE_RULE='%.xml:       %.xml.in       $(INTLTOOL_MERGE) ; $(INTLTOOL_V_MERGE)_it_tmp_dir=tmp.intltool.[$][$]RANDOM && mkdir [$][$]_it_tmp_dir && LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u [$][$]_it_tmp_dir $< [$]@ && rmdir [$][$]_it_tmp_dir'
+fi
       INTLTOOL_XAM_RULE='%.xam:       %.xml.in       $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< [$]@' 
       INTLTOOL_KBD_RULE='%.kbd:       %.kbd.in       $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -x -u -m -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< [$]@' 
     INTLTOOL_CAVES_RULE='%.caves:     %.caves.in     $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*.po) ; $(INTLTOOL_V_MERGE)LC_ALL=C $(INTLTOOL_MERGE) $(INTLTOOL_V_MERGE_OPTIONS) -d -u -c $(top_builddir)/po/.intltool-merge-cache $(top_srcdir)/po $< [$]@' 
diff --git a/src/datetime-service.c b/src/datetime-service.c
index a782d80..a10cbb5 100644
--- a/src/datetime-service.c
+++ b/src/datetime-service.c
@@ -273,7 +273,7 @@ quick_set_tz_cb (GObject *object, GAsyncResult *res, gpointer data)
 
   if (error != NULL) {
     g_warning("Could not set timezone for SettingsDaemon: %s", error->message);
-    g_error_free(error);
+    g_clear_error (&error);
     return;
   }
 
@@ -289,7 +289,7 @@ quick_set_tz_proxy_cb (GObject *object, GAsyncResult *res, gpointer zone)
 
 	if (error != NULL) {
 		g_warning("Could not grab DBus proxy for SettingsDaemon: %s", error->message);
-		g_error_free(error);
+		g_clear_error (&error);
 		g_free (zone);
 		return;
 	}
@@ -363,7 +363,7 @@ execute_command (const gchar * command)
 	g_debug("Issuing command '%s'", command);
 	if (!g_spawn_command_line_async(command, &error)) {
 		g_warning("Unable to start %s: %s", (char *)command, error->message);
-		g_error_free(error);
+		g_clear_error (&error);
 	}
 }
 
@@ -532,7 +532,7 @@ calendar_app_is_usable (void)
 	GSList *accounts_list = gconf_client_get_list (gconf, "/apps/evolution/mail/accounts", GCONF_VALUE_STRING, NULL);
 	const guint n = g_slist_length (accounts_list);
 	g_debug ("found %u evolution accounts", n);
-	g_slist_free (accounts_list);
+	g_slist_free_full (accounts_list, g_free);
 	return n > 0;
 }
 
@@ -613,22 +613,43 @@ auth_func (ECal *ecal,
 }
 
 static gint
-compare_comp_instances (gconstpointer a, 
-                        gconstpointer b)
+compare_comp_instances (gconstpointer ga, gconstpointer gb)
 {
-        const struct comp_instance *ci_a = a;
-        const struct comp_instance *ci_b = b;
-        time_t d = ci_a->start - ci_b->start;
-		if (d < 0) return -1;
-		else if (d > 0) return 1; 
-		return 0;
+	const struct comp_instance * a = ga;
+	const struct comp_instance * b = gb;
+
+	/* sort by start time */
+	if (a->start < b->start) return -1;
+	if (a->start > b->start) return  1;
+	return 0;
+}
+
+static struct comp_instance*
+comp_instance_new (ECalComponent * comp, time_t start, time_t end, ESource * source)
+{
+	g_debug("Using times start %s, end %s", ctime(&start), ctime(&end));
+
+	struct comp_instance *ci = g_new (struct comp_instance, 1);
+	ci->comp = g_object_ref (comp);
+	ci->source = source;
+	ci->start = start;
+	ci->end = end;
+	return ci;
+}
+static void
+comp_instance_free (struct comp_instance* ci)
+{
+	if (ci != NULL) {
+		g_clear_object (&ci->comp);
+		g_free (ci);
+	}
 }
 
 static gboolean
-populate_appointment_instances (ECalComponent *comp,
-                                time_t instance_start,
-                                time_t instance_end,
-                                gpointer data)
+populate_appointment_instances (ECalComponent * comp,
+                                time_t          start,
+                                time_t          end,
+                                gpointer        data)
 {
 	g_debug("Appending item %p", comp);
 	
@@ -638,20 +659,9 @@ populate_appointment_instances (ECalComponent *comp,
 	icalproperty_status status;
 	e_cal_component_get_status (comp, &status);
 	if (status == ICAL_STATUS_COMPLETED || status == ICAL_STATUS_CANCELLED) return FALSE;
-	
-	g_object_ref(comp);
 
-	struct comp_instance *ci;
-	ci = g_new (struct comp_instance, 1);
-	
-	g_debug("Using times start %s, end %s", ctime(&instance_start), ctime(&instance_end));
-	
-	ci->comp = comp;
-	ci->source = E_SOURCE(data);
-	ci->start = instance_start;
-	ci->end = instance_end;
-	
-	comp_instances = g_list_append(comp_instances, ci);
+	struct comp_instance *ci = comp_instance_new (comp, start, end, E_SOURCE(data));
+	comp_instances = g_list_append (comp_instances, ci);
 	return TRUE;
 }
 
@@ -719,25 +729,18 @@ update_appointment_menu_items (gpointer user_data)
 	
 	if (!e_cal_get_sources(&sources, E_CAL_SOURCE_TYPE_EVENT, &gerror)) {
 		g_debug("Failed to get ecal sources\n");
+		g_clear_error (&gerror);
 		return FALSE;
 	}
 	
-	// Free comp_instances if not NULL
-	if (comp_instances != NULL) {
-		g_debug("Freeing comp_instances: may be an overlap\n");
-		for (l = comp_instances; l; l = l->next) {
-			const struct comp_instance *ci = l->data;
-			g_object_unref(ci->comp);
-		}
-		g_list_free(comp_instances);
-		comp_instances = NULL;
+	// clear any previous comp_instances
+	g_list_free_full (comp_instances, (GDestroyNotify)comp_instance_free);
+	comp_instances = NULL;
 
-	}
 	GSList *cal_list = gconf_client_get_list(gconf, "/apps/evolution/calendar/display/selected_calendars", GCONF_VALUE_STRING, &gerror);
 	if (gerror) {
 	  g_debug("Failed to get evolution preference for enabled calendars");
-	  g_error_free(gerror);
-	  gerror = NULL;
+	  g_clear_error (&gerror);
 	  cal_list = NULL;
 	}
 	
@@ -759,39 +762,33 @@ update_appointment_menu_items (gpointer user_data)
 			}
 			if (current_zone && !e_cal_set_default_timezone(ecal, current_zone, &gerror)) {
 				g_debug("Failed to set ecal default timezone %s", gerror->message);
-				g_error_free(gerror);
-				gerror = NULL;
+				g_clear_error (&gerror);
 				g_object_unref(ecal);
 				continue;
 			}
 			
 			if (!e_cal_open(ecal, FALSE, &gerror)) {
 				g_debug("Failed to get ecal sources %s", gerror->message);
-				g_error_free(gerror);
-				gerror = NULL;
+				g_clear_error (&gerror);
 				g_object_unref(ecal);
 				continue;
 			}
+
 			const gchar *ecal_uid = e_source_peek_uid(source);
-			gboolean match = FALSE;
 			g_debug("Checking ecal_uid is enabled: %s", ecal_uid);
-			for (i = 0; i<g_slist_length(cal_list);i++) {
-				char *cuid = (char *)g_slist_nth_data(cal_list, i);
-				if (g_strcmp0(cuid, ecal_uid) == 0) {
-					match = TRUE;
-					break;
-				}
-			}
-			if (!match) {
+			const gboolean in_list = g_slist_find_custom (cal_list, ecal_uid, (GCompareFunc)g_strcmp0) != NULL;
+			if (!in_list) {
 				g_object_unref(ecal);
 				continue;
 			}
+
 			g_debug("ecal_uid is enabled, generating instances");
-			
-			e_cal_generate_instances (ecal, t1, t2, (ECalRecurInstanceFn) populate_appointment_instances, (gpointer) source);
+			e_cal_generate_instances (ecal, t1, t2, (ECalRecurInstanceFn) populate_appointment_instances, source);
 			g_object_unref(ecal);
 		}
 	}
+	g_slist_free_full (cal_list, g_free);
+
 	g_debug("Number of ECalComponents returned: %d", g_list_length(comp_instances));
 	GList *sorted_comp_instances = g_list_sort(comp_instances, compare_comp_instances);
 	comp_instances = NULL;
@@ -821,13 +818,12 @@ update_appointment_menu_items (gpointer user_data)
 		apt_output = SETTINGS_TIME_12_HOUR;
 	} else if (g_strcmp0(time_format_str, "24-hour") == 0) {
 		apt_output = SETTINGS_TIME_24_HOUR;
+	} else if (is_locale_12h()) {
+		apt_output = SETTINGS_TIME_12_HOUR;
 	} else {
-		if (is_locale_12h()) {
-			apt_output = SETTINGS_TIME_12_HOUR;
-		} else {
-			apt_output = SETTINGS_TIME_24_HOUR;
-		}
+		apt_output = SETTINGS_TIME_24_HOUR;
 	}
+	g_free (time_format_str);
 	
 	GVariantBuilder markeddays;
 	g_variant_builder_init (&markeddays, G_VARIANT_TYPE ("ai"));
@@ -1001,6 +997,7 @@ update_appointment_menu_items (gpointer user_data)
 	  			}
 	  			
 				dbusmenu_menuitem_property_set_image (item, APPOINTMENT_MENUITEM_PROP_ICON, pixbuf);
+				g_clear_object (&pixbuf);
 			} else {
 				g_debug("Creating pixbuf from surface failed");
 			}
@@ -1010,15 +1007,15 @@ update_appointment_menu_items (gpointer user_data)
 		g_debug("Adding appointment: %p", item);
 	}
 	
-    if (gerror != NULL) g_error_free(gerror);
-	for (l = sorted_comp_instances; l; l = l->next) { 
-		const struct comp_instance *ci = l->data;
-		g_object_unref(ci->comp);
-	}
-	g_list_free(sorted_comp_instances);
+	g_clear_error (&gerror);
+
+	g_list_free_full (sorted_comp_instances, (GDestroyNotify)comp_instance_free);
+	sorted_comp_instances = NULL;
 	
 	GVariant * marks = g_variant_builder_end (&markeddays);
 	dbusmenu_menuitem_property_set_variant (calendar, CALENDAR_MENUITEM_PROP_MARKS, marks);
+
+	g_clear_object (&sources);
 	
 	updating_appointments = FALSE;
 	g_debug("End of objects");
@@ -1205,7 +1202,7 @@ system_proxy_cb (GObject * object, GAsyncResult * res, gpointer user_data)
 
 	if (error != NULL) {
 		g_warning("Could not grab DBus proxy for ConsoleKit: %s", error->message);
-		g_error_free(error);
+		g_clear_error (&error);
 		return;
 	}
 
@@ -1218,6 +1215,7 @@ geo_address_cb (GeoclueAddress * address, int timestamp, GHashTable * addy_data,
 {
 	if (error != NULL) {
 		g_warning("Unable to get Geoclue address: %s", error->message);
+		g_clear_error (&error);
 		return;
 	}
 
@@ -1279,6 +1277,7 @@ geo_create_address (GeoclueMasterClient * master, GeoclueAddress * address, GErr
 {
 	if (error != NULL) {
 		g_warning("Unable to create GeoClue address: %s", error->message);
+		g_clear_error (&error);
 		return;
 	}
 
@@ -1305,6 +1304,7 @@ geo_req_set (GeoclueMasterClient * master, GError * error, gpointer user_data)
 {
 	if (error != NULL) {
 		g_warning("Unable to set Geoclue requirements: %s", error->message);
+		g_clear_error (&error);
 	}
 	return;
 }
@@ -1367,6 +1367,7 @@ geo_create_client (GeoclueMaster * master, GeoclueMasterClient * client, gchar *
 
 	if (error != NULL) {
 		g_warning("Unable to get a GeoClue client!  '%s'  Geolocation based timezone support will not be available.", error->message);
+		g_clear_error (&error);
 		return;
 	}