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[evolution] Use camel_service_ref_session().

commit 3b11207dcbd01b5a18f93a406d267bb786829471
Author: Matthew Barnes <mbarnes redhat com>
Date:   Mon Feb 11 10:38:29 2013 -0500

    Use camel_service_ref_session().

 libemail-engine/camel-sasl-xoauth2.c        |    3 +-
 libemail-engine/e-mail-folder-utils.c       |   15 +++++--
 libemail-engine/e-mail-utils.c              |   45 ++++++++++++++------
 libemail-engine/mail-folder-cache.c         |   28 +++++++++---
 libemail-engine/mail-ops.c                  |    8 +++-
 libemail-engine/mail-vfolder.c              |   59 +++++++++++++++-----------
 mail/em-folder-properties.c                 |   13 +++++-
 mail/em-utils.c                             |    4 +-
 mail/mail-autofilter.c                      |    8 +++-
 mail/mail-send-recv.c                       |    9 +++-
 modules/online-accounts/camel-sasl-xoauth.c |    9 +++-
 11 files changed, 136 insertions(+), 65 deletions(-)
---
diff --git a/libemail-engine/camel-sasl-xoauth2.c b/libemail-engine/camel-sasl-xoauth2.c
index 3cf43e7..32aad56 100644
--- a/libemail-engine/camel-sasl-xoauth2.c
+++ b/libemail-engine/camel-sasl-xoauth2.c
@@ -80,7 +80,7 @@ sasl_xoauth2_challenge_sync (CamelSasl *sasl,
 	gboolean success;
 
 	service = camel_sasl_get_service (sasl);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 	settings = camel_service_ref_settings (service);
 
 	uid = camel_service_get_uid (service);
@@ -108,6 +108,7 @@ sasl_xoauth2_challenge_sync (CamelSasl *sasl,
 
 	g_object_unref (source);
 	g_object_unref (settings);
+	g_object_unref (session);
 
 	/* IMAP and SMTP services will Base64-encode the request. */
 
diff --git a/libemail-engine/e-mail-folder-utils.c b/libemail-engine/e-mail-folder-utils.c
index 5f9ea6a..bd45f35 100644
--- a/libemail-engine/e-mail-folder-utils.c
+++ b/libemail-engine/e-mail-folder-utils.c
@@ -223,13 +223,13 @@ mail_folder_expunge_pop3_stores (CamelFolder *folder,
 	parent_store = camel_folder_get_parent_store (folder);
 
 	service = CAMEL_SERVICE (parent_store);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 	registry = e_mail_session_get_registry (E_MAIL_SESSION (session));
 
 	uids = camel_folder_get_uids (folder);
 
 	if (uids == NULL)
-		return TRUE;
+		goto exit;
 
 	expunging_uids = g_hash_table_new_full (
 		(GHashFunc) g_str_hash,
@@ -377,6 +377,9 @@ mail_folder_expunge_pop3_stores (CamelFolder *folder,
 
 	g_hash_table_destroy (expunging_uids);
 
+exit:
+	g_object_unref (session);
+
 	return success;
 }
 
@@ -400,7 +403,7 @@ e_mail_folder_expunge_sync (CamelFolder *folder,
 	parent_store = camel_folder_get_parent_store (folder);
 
 	service = CAMEL_SERVICE (parent_store);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 
 	uid = camel_service_get_uid (service);
 	store_is_local = (g_strcmp0 (uid, E_MAIL_SESSION_LOCAL_UID) == 0);
@@ -420,7 +423,8 @@ e_mail_folder_expunge_sync (CamelFolder *folder,
 			is_local_trash = (folder == local_trash);
 			g_object_unref (local_trash);
 		} else {
-			return FALSE;
+			success = FALSE;
+			goto exit;
 		}
 	}
 
@@ -434,6 +438,9 @@ e_mail_folder_expunge_sync (CamelFolder *folder,
 		success = camel_folder_expunge_sync (
 			folder, cancellable, error);
 
+exit:
+	g_object_unref (session);
+
 	return success;
 }
 
diff --git a/libemail-engine/e-mail-utils.c b/libemail-engine/e-mail-utils.c
index 6614ecf..ba18f8a 100644
--- a/libemail-engine/e-mail-utils.c
+++ b/libemail-engine/e-mail-utils.c
@@ -73,19 +73,20 @@ em_utils_folder_is_drafts (ESourceRegistry *registry,
 	g_return_val_if_fail (CAMEL_IS_FOLDER (folder), FALSE);
 
 	store = camel_folder_get_parent_store (folder);
-	session = camel_service_get_session (CAMEL_SERVICE (store));
+	session = camel_service_ref_session (CAMEL_SERVICE (store));
 
 	local_drafts_folder =
 		e_mail_session_get_local_folder (
 		E_MAIL_SESSION (session), E_MAIL_LOCAL_FOLDER_DRAFTS);
 
-	if (folder == local_drafts_folder)
-		return TRUE;
+	if (folder == local_drafts_folder) {
+		is_drafts = TRUE;
+		goto exit;
+	}
 
 	folder_uri = e_mail_folder_uri_from_folder (folder);
 
 	store = camel_folder_get_parent_store (folder);
-	session = camel_service_get_session (CAMEL_SERVICE (store));
 
 	extension_name = E_SOURCE_EXTENSION_MAIL_COMPOSITION;
 	list = e_source_registry_list_sources (registry, extension_name);
@@ -112,6 +113,9 @@ em_utils_folder_is_drafts (ESourceRegistry *registry,
 	g_list_free_full (list, (GDestroyNotify) g_object_unref);
 	g_free (folder_uri);
 
+exit:
+	g_object_unref (session);
+
 	return is_drafts;
 }
 
@@ -140,19 +144,20 @@ em_utils_folder_is_templates (ESourceRegistry *registry,
 	g_return_val_if_fail (CAMEL_IS_FOLDER (folder), FALSE);
 
 	store = camel_folder_get_parent_store (folder);
-	session = camel_service_get_session (CAMEL_SERVICE (store));
+	session = camel_service_ref_session (CAMEL_SERVICE (store));
 
 	local_templates_folder =
 		e_mail_session_get_local_folder (
 		E_MAIL_SESSION (session), E_MAIL_LOCAL_FOLDER_TEMPLATES);
 
-	if (folder == local_templates_folder)
-		return TRUE;
+	if (folder == local_templates_folder) {
+		is_templates = TRUE;
+		goto exit;
+	}
 
 	folder_uri = e_mail_folder_uri_from_folder (folder);
 
 	store = camel_folder_get_parent_store (folder);
-	session = camel_service_get_session (CAMEL_SERVICE (store));
 
 	extension_name = E_SOURCE_EXTENSION_MAIL_COMPOSITION;
 	list = e_source_registry_list_sources (registry, extension_name);
@@ -179,6 +184,9 @@ em_utils_folder_is_templates (ESourceRegistry *registry,
 	g_list_free_full (list, (GDestroyNotify) g_object_unref);
 	g_free (folder_uri);
 
+exit:
+	g_object_unref (session);
+
 	return is_templates;
 }
 
@@ -206,19 +214,20 @@ em_utils_folder_is_sent (ESourceRegistry *registry,
 	g_return_val_if_fail (CAMEL_IS_FOLDER (folder), FALSE);
 
 	store = camel_folder_get_parent_store (folder);
-	session = camel_service_get_session (CAMEL_SERVICE (store));
+	session = camel_service_ref_session (CAMEL_SERVICE (store));
 
 	local_sent_folder =
 		e_mail_session_get_local_folder (
 		E_MAIL_SESSION (session), E_MAIL_LOCAL_FOLDER_SENT);
 
-	if (folder == local_sent_folder)
-		return TRUE;
+	if (folder == local_sent_folder) {
+		is_sent = TRUE;
+		goto exit;
+	}
 
 	folder_uri = e_mail_folder_uri_from_folder (folder);
 
 	store = camel_folder_get_parent_store (folder);
-	session = camel_service_get_session (CAMEL_SERVICE (store));
 
 	extension_name = E_SOURCE_EXTENSION_MAIL_SUBMISSION;
 	list = e_source_registry_list_sources (registry, extension_name);
@@ -245,6 +254,9 @@ em_utils_folder_is_sent (ESourceRegistry *registry,
 	g_list_free_full (list, (GDestroyNotify) g_object_unref);
 	g_free (folder_uri);
 
+exit:
+	g_object_unref (session);
+
 	return is_sent;
 }
 
@@ -264,17 +276,22 @@ em_utils_folder_is_outbox (ESourceRegistry *registry,
 	CamelStore *store;
 	CamelSession *session;
 	CamelFolder *local_outbox_folder;
+	gboolean is_outbox;
 
 	g_return_val_if_fail (CAMEL_IS_FOLDER (folder), FALSE);
 
 	store = camel_folder_get_parent_store (folder);
-	session = camel_service_get_session (CAMEL_SERVICE (store));
+	session = camel_service_ref_session (CAMEL_SERVICE (store));
 
 	local_outbox_folder =
 		e_mail_session_get_local_folder (
 		E_MAIL_SESSION (session), E_MAIL_LOCAL_FOLDER_OUTBOX);
 
-	return (folder == local_outbox_folder);
+	is_outbox = (folder == local_outbox_folder);
+
+	g_object_unref (session);
+
+	return is_outbox;
 }
 
 /* ********************************************************************** */
diff --git a/libemail-engine/mail-folder-cache.c b/libemail-engine/mail-folder-cache.c
index ad8a5b1..2f99e84 100644
--- a/libemail-engine/mail-folder-cache.c
+++ b/libemail-engine/mail-folder-cache.c
@@ -432,7 +432,7 @@ folder_changed_cb (CamelFolder *folder,
 
 	full_name = camel_folder_get_full_name (folder);
 	parent_store = camel_folder_get_parent_store (folder);
-	session = camel_service_get_session (CAMEL_SERVICE (parent_store));
+	session = camel_service_ref_session (CAMEL_SERVICE (parent_store));
 
 	if (!last_newmail_per_folder)
 		last_newmail_per_folder = g_hash_table_new (g_direct_hash, g_direct_equal);
@@ -504,6 +504,8 @@ folder_changed_cb (CamelFolder *folder,
 	g_free (uid);
 	g_free (sender);
 	g_free (subject);
+
+	g_object_unref (session);
 }
 
 static void
@@ -1032,15 +1034,19 @@ storeinfo_find_folder_info (CamelStore *store,
                             StoreInfo *si,
                             struct _find_info *fi)
 {
+	CamelSession *session;
 	gchar *folder_name;
 	gboolean success;
 
 	if (fi->fi != NULL)
 		return;
 
+	session = camel_service_ref_session (CAMEL_SERVICE (store));
+
 	success = e_mail_folder_uri_parse (
-		camel_service_get_session (CAMEL_SERVICE (store)),
-		fi->folder_uri, NULL, &folder_name, NULL);
+		session, fi->folder_uri, NULL, &folder_name, NULL);
+
+	g_object_unref (session);
 
 	if (success) {
 		fi->fi = g_hash_table_lookup (si->folders, folder_name);
@@ -1170,7 +1176,7 @@ mail_folder_cache_folder_available (MailFolderCache *cache,
 			return;
 
 	service = CAMEL_SERVICE (store);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 	provider = camel_service_get_provider (service);
 
 	/* Reuse the stores mutex just because it's handy. */
@@ -1189,6 +1195,8 @@ mail_folder_cache_folder_available (MailFolderCache *cache,
 		g_free (folder_uri);
 
 	g_rec_mutex_unlock (&cache->priv->stores_mutex);
+
+	g_object_unref (session);
 }
 
 static void
@@ -1218,7 +1226,7 @@ mail_folder_cache_folder_unavailable (MailFolderCache *cache,
 			return;
 
 	service = CAMEL_SERVICE (store);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 	provider = camel_service_get_provider (service);
 
 	/* Reuse the stores mutex just because it's handy. */
@@ -1240,6 +1248,8 @@ mail_folder_cache_folder_unavailable (MailFolderCache *cache,
 	g_free (folder_uri);
 
 	g_rec_mutex_unlock (&cache->priv->stores_mutex);
+
+	g_object_unref (session);
 }
 
 static void
@@ -1268,7 +1278,7 @@ mail_folder_cache_folder_deleted (MailFolderCache *cache,
 			return;
 
 	service = CAMEL_SERVICE (store);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 
 	/* Reuse the stores mutex just because it's handy. */
 	g_rec_mutex_lock (&cache->priv->stores_mutex);
@@ -1292,6 +1302,8 @@ mail_folder_cache_folder_deleted (MailFolderCache *cache,
 	g_free (folder_uri);
 
 	g_rec_mutex_unlock (&cache->priv->stores_mutex);
+
+	g_object_unref (session);
 }
 
 static void
@@ -1507,7 +1519,7 @@ mail_folder_cache_note_store (MailFolderCache *cache,
 	g_return_if_fail (MAIL_IS_FOLDER_CACHE (cache));
 	g_return_if_fail (CAMEL_IS_STORE (store));
 
-	session = camel_service_get_session (CAMEL_SERVICE (store));
+	session = camel_service_ref_session (CAMEL_SERVICE (store));
 
 	g_rec_mutex_lock (&cache->priv->stores_mutex);
 
@@ -1590,6 +1602,8 @@ mail_folder_cache_note_store (MailFolderCache *cache,
 			store, "folder-unsubscribed",
 			G_CALLBACK (store_folder_unsubscribed_cb), cache);
 	}
+
+	g_object_unref (session);
 }
 
 /**
diff --git a/libemail-engine/mail-ops.c b/libemail-engine/mail-ops.c
index a01dc50..2084aa1 100644
--- a/libemail-engine/mail-ops.c
+++ b/libemail-engine/mail-ops.c
@@ -257,7 +257,7 @@ fetch_mail_exec (struct _fetch_mail_msg *m,
 	gint i;
 
 	service = CAMEL_SERVICE (m->store);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 
 	fm->destination = e_mail_session_get_local_folder (
 		E_MAIL_SESSION (session), E_MAIL_LOCAL_FOLDER_LOCAL_INBOX);
@@ -436,6 +436,8 @@ exit:
 	if (!is_local_delivery)
 		camel_service_disconnect_sync (
 			service, TRUE, cancellable, NULL);
+
+	g_object_unref (session);
 }
 
 static void
@@ -489,7 +491,7 @@ mail_fetch_mail (CamelStore *store,
 
 	g_return_if_fail (CAMEL_IS_STORE (store));
 
-	session = camel_service_get_session (CAMEL_SERVICE (store));
+	session = camel_service_ref_session (CAMEL_SERVICE (store));
 
 	m = mail_msg_new (&fetch_mail_info);
 	fm = (struct _filter_mail_msg *) m;
@@ -515,6 +517,8 @@ mail_fetch_mail (CamelStore *store,
 		camel_filter_driver_set_status_func (fm->driver, status, status_data);
 
 	mail_msg_unordered_push (m);
+
+	g_object_unref (session);
 }
 
 /* ********************************************************************** */
diff --git a/libemail-engine/mail-vfolder.c b/libemail-engine/mail-vfolder.c
index b23ce0c..fbddfd8 100644
--- a/libemail-engine/mail-vfolder.c
+++ b/libemail-engine/mail-vfolder.c
@@ -202,7 +202,7 @@ static MailMsgInfo vfolder_setup_info = {
 
 /* sources_uri should be camel uri's */
 static gint
-vfolder_setup (EMailSession *session,
+vfolder_setup (CamelSession *session,
                CamelFolder *folder,
                const gchar *query,
                GList *sources_uri)
@@ -442,7 +442,6 @@ mail_vfolder_add_folder (CamelStore *store,
 	g_return_if_fail (folder_name != NULL);
 
 	service = CAMEL_SERVICE (store);
-	session = camel_service_get_session (service);
 	provider = camel_service_get_provider (service);
 
 	remote = (provider->flags & CAMEL_PROVIDER_IS_REMOTE) != 0;
@@ -452,6 +451,7 @@ mail_vfolder_add_folder (CamelStore *store,
 
 	g_return_if_fail (mail_in_main_thread ());
 
+	session = camel_service_ref_session (service);
 	uri = e_mail_folder_uri_build (store, folder_name);
 
 	G_LOCK (vfolder);
@@ -517,6 +517,7 @@ done:
 		g_free (exuri);
 	}
 
+	g_object_unref (session);
 	g_free (uri);
 }
 
@@ -562,8 +563,8 @@ mail_vfolder_delete_folder (CamelStore *store,
 	g_return_if_fail (mail_in_main_thread ());
 
 	service = CAMEL_SERVICE (store);
-	session = camel_service_get_session (service);
 
+	session = camel_service_ref_session (service);
 	uri = e_mail_folder_uri_build (store, folder_name);
 
 	changed_count = 0;
@@ -659,6 +660,7 @@ done:
 
 	g_string_free (changed, TRUE);
 
+	g_object_unref (session);
 	g_free (uri);
 }
 
@@ -692,7 +694,7 @@ mail_vfolder_rename_folder (CamelStore *store,
 	g_return_if_fail (mail_in_main_thread ());
 
 	service = CAMEL_SERVICE (store);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 
 	old_uri = e_mail_folder_uri_build (store, old_folder_name);
 	new_uri = e_mail_folder_uri_build (store, new_folder_name);
@@ -750,6 +752,8 @@ mail_vfolder_rename_folder (CamelStore *store,
 
 	g_free (old_uri);
 	g_free (new_uri);
+
+	g_object_unref (session);
 }
 
 /* ********************************************************************** */
@@ -786,31 +790,25 @@ rule_add_sources (EMailSession *session,
 	*sources_urip = sources_uri;
 }
 
-static EMailSession *
-get_session (CamelFolder *folder)
-{
-	CamelStore *store;
-
-	store = camel_folder_get_parent_store (folder);
-
-	return (EMailSession *) camel_service_get_session (CAMEL_SERVICE (store));
-}
-
 static void
 rule_changed (EFilterRule *rule,
               CamelFolder *folder)
 {
-	EMailSession *session;
+	CamelStore *store;
 	CamelService *service;
+	CamelSession *session;
+	MailFolderCache *cache;
 	GList *sources_uri = NULL;
 	GString *query;
 	const gchar *full_name;
 
 	full_name = camel_folder_get_full_name (folder);
-	session = get_session (folder);
+	store = camel_folder_get_parent_store (folder);
+	session = camel_service_ref_session (CAMEL_SERVICE (store));
+	cache = e_mail_session_get_folder_cache (E_MAIL_SESSION (session));
 
 	service = camel_session_ref_service (
-		CAMEL_SESSION (session), E_MAIL_SESSION_VFOLDER_UID);
+		session, E_MAIL_SESSION_VFOLDER_UID);
 	g_return_if_fail (service != NULL);
 
 	/* If the folder has changed name, then
@@ -856,7 +854,8 @@ rule_changed (EFilterRule *rule,
 	if (em_vfolder_rule_get_with ((EMVFolderRule *) rule) == EM_VFOLDER_RULE_WITH_SPECIFIC) {
 		/* find any (currently available) folders, and add them to the ones to open */
 		rule_add_sources (
-			session, em_vfolder_rule_get_sources ((EMVFolderRule *) rule),
+			E_MAIL_SESSION (session),
+			em_vfolder_rule_get_sources ((EMVFolderRule *) rule),
 			&sources_uri, (EMVFolderRule *) rule);
 	}
 
@@ -865,13 +864,13 @@ rule_changed (EFilterRule *rule,
 	if (em_vfolder_rule_get_with ((EMVFolderRule *) rule) == EM_VFOLDER_RULE_WITH_LOCAL ||
 	    em_vfolder_rule_get_with ((EMVFolderRule *) rule) == EM_VFOLDER_RULE_WITH_LOCAL_REMOTE_ACTIVE) {
 
-		MailFolderCache *cache;
 		GQueue queue = G_QUEUE_INIT;
 
-		cache = e_mail_session_get_folder_cache (session);
 		mail_folder_cache_get_local_folder_uris (cache, &queue);
 
-		rule_add_sources (session, &queue, &sources_uri, NULL);
+		rule_add_sources (
+			E_MAIL_SESSION (session),
+			&queue, &sources_uri, NULL);
 
 		while (!g_queue_is_empty (&queue))
 			g_free (g_queue_pop_head (&queue));
@@ -880,13 +879,13 @@ rule_changed (EFilterRule *rule,
 	if (em_vfolder_rule_get_with ((EMVFolderRule *) rule) == EM_VFOLDER_RULE_WITH_REMOTE_ACTIVE ||
 	    em_vfolder_rule_get_with ((EMVFolderRule *) rule) == EM_VFOLDER_RULE_WITH_LOCAL_REMOTE_ACTIVE) {
 
-		MailFolderCache *cache;
 		GQueue queue = G_QUEUE_INIT;
 
-		cache = e_mail_session_get_folder_cache (session);
 		mail_folder_cache_get_remote_folder_uris (cache, &queue);
 
-		rule_add_sources (session, &queue, &sources_uri, NULL);
+		rule_add_sources (
+			E_MAIL_SESSION (session),
+			&queue, &sources_uri, NULL);
 
 		while (!g_queue_is_empty (&queue))
 			g_free (g_queue_pop_head (&queue));
@@ -900,6 +899,8 @@ rule_changed (EFilterRule *rule,
 	vfolder_setup (session, folder, query->str, sources_uri);
 
 	g_string_free (query, TRUE);
+
+	g_object_unref (session);
 }
 
 static void
@@ -987,8 +988,10 @@ store_folder_deleted_cb (CamelStore *store,
 	/* delete it from our list */
 	rule = e_rule_context_find_rule ((ERuleContext *) context, info->full_name, NULL);
 	if (rule) {
+		CamelSession *session;
 		const gchar *config_dir;
-		EMailSession *session = E_MAIL_SESSION (camel_service_get_session (CAMEL_SERVICE (store)));
+
+		session = camel_service_ref_session (CAMEL_SERVICE (store));
 
 		/* We need to stop listening to removed events,
 		 * otherwise we'll try and remove it again. */
@@ -997,6 +1000,10 @@ store_folder_deleted_cb (CamelStore *store,
 			0, 0, NULL, context_rule_removed, NULL);
 		e_rule_context_remove_rule ((ERuleContext *) context, rule);
 		g_object_unref (rule);
+
+		/* FIXME This is dangerous.  Either the signal closure
+		 *       needs to be referenced somehow, or ERuleContext
+		 *       needs to keep its own CamelSession reference. */
 		g_signal_connect (
 			context, "rule_removed",
 			G_CALLBACK (context_rule_removed), session);
@@ -1005,6 +1012,8 @@ store_folder_deleted_cb (CamelStore *store,
 		user = g_build_filename (config_dir, "vfolders.xml", NULL);
 		e_rule_context_save ((ERuleContext *) context, user);
 		g_free (user);
+
+		g_object_unref (session);
 	} else {
 		g_warning (
 			"Cannot find rule for deleted vfolder '%s'",
diff --git a/mail/em-folder-properties.c b/mail/em-folder-properties.c
index bfbf17f..526dc89 100644
--- a/mail/em-folder-properties.c
+++ b/mail/em-folder-properties.c
@@ -196,7 +196,8 @@ emfp_get_folder_item (EConfig *ec,
 		MailFolderCache *folder_cache;
 
 		store = camel_folder_get_parent_store (context->folder);
-		session = camel_service_get_session (CAMEL_SERVICE (store));
+		session = camel_service_ref_session (CAMEL_SERVICE (store));
+
 		folder_cache = e_mail_session_get_folder_cache (
 			E_MAIL_SESSION (session));
 
@@ -205,6 +206,8 @@ emfp_get_folder_item (EConfig *ec,
 			mail_folder_cache_get_folder_info_flags (
 				folder_cache, context->folder, &fi_flags) &&
 			(fi_flags & CAMEL_FOLDER_TYPE_MASK) != CAMEL_FOLDER_TYPE_INBOX;
+
+		g_object_unref (session);
 	}
 
 	class = G_OBJECT_GET_CLASS (context->folder);
@@ -493,7 +496,7 @@ em_folder_properties_show (CamelStore *store,
 
 	service = CAMEL_SERVICE (store);
 	uid = camel_service_get_uid (service);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 
 	/* Show the Edit Rule dialog for Search Folders, but not "Unmatched".
 	 * "Unmatched" is a special Search Folder which can't be modified. */
@@ -507,7 +510,8 @@ em_folder_properties_show (CamelStore *store,
 				E_MAIL_SESSION (session),
 				folder_uri, alert_sink);
 			g_free (folder_uri);
-			return;
+
+			goto exit;
 		}
 	}
 
@@ -530,4 +534,7 @@ em_folder_properties_show (CamelStore *store,
 		(GAsyncReadyCallback) emfp_dialog_got_folder, context);
 
 	g_object_unref (cancellable);
+
+exit:
+	g_object_unref (session);
 }
diff --git a/mail/em-utils.c b/mail/em-utils.c
index b0dc4ba..e215fa1 100644
--- a/mail/em-utils.c
+++ b/mail/em-utils.c
@@ -642,7 +642,7 @@ em_utils_print_messages_to_file (CamelFolder *folder,
 		return FALSE;
 
 	parent_store = camel_folder_get_parent_store (folder);
-	session = camel_service_get_session (CAMEL_SERVICE (parent_store));
+	session = camel_service_ref_session (CAMEL_SERVICE (parent_store));
 
 	parser = e_mail_parser_new (session);
 
@@ -651,6 +651,8 @@ em_utils_print_messages_to_file (CamelFolder *folder,
 		(GAsyncReadyCallback) do_print_msg_to_file,
 		NULL, g_strdup (filename));
 
+	g_object_unref (session);
+
 	return TRUE;
 }
 
diff --git a/mail/mail-autofilter.c b/mail/mail-autofilter.c
index c7cefb3..62d1f6e 100644
--- a/mail/mail-autofilter.c
+++ b/mail/mail-autofilter.c
@@ -422,7 +422,7 @@ mail_filter_rename_folder (CamelStore *store,
 	g_return_if_fail (old_folder_name != NULL);
 	g_return_if_fail (new_folder_name != NULL);
 
-	session = camel_service_get_session (CAMEL_SERVICE (store));
+	session = camel_service_ref_session (CAMEL_SERVICE (store));
 
 	old_uri = e_mail_folder_uri_build (store, old_folder_name);
 	new_uri = e_mail_folder_uri_build (store, new_folder_name);
@@ -447,6 +447,8 @@ mail_filter_rename_folder (CamelStore *store,
 
 	g_free (old_uri);
 	g_free (new_uri);
+
+	g_object_unref (session);
 }
 
 void
@@ -465,7 +467,7 @@ mail_filter_delete_folder (CamelStore *store,
 	g_return_if_fail (folder_name != NULL);
 	g_return_if_fail (E_IS_ALERT_SINK (alert_sink));
 
-	session = camel_service_get_session (CAMEL_SERVICE (store));
+	session = camel_service_ref_session (CAMEL_SERVICE (store));
 
 	uri = e_mail_folder_uri_build (store, folder_name);
 
@@ -525,4 +527,6 @@ mail_filter_delete_folder (CamelStore *store,
 	g_free (user);
 	g_object_unref (fc);
 	g_free (uri);
+
+	g_object_unref (session);
 }
diff --git a/mail/mail-send-recv.c b/mail/mail-send-recv.c
index da0a148..bde01ab 100644
--- a/mail/mail-send-recv.c
+++ b/mail/mail-send-recv.c
@@ -1307,18 +1307,18 @@ mail_receive_service (CamelService *service)
 	g_return_if_fail (CAMEL_IS_SERVICE (service));
 
 	uid = camel_service_get_uid (service);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 
 	data = setup_send_data (E_MAIL_SESSION (session));
 	info = g_hash_table_lookup (data->active, uid);
 
 	if (info != NULL)
-		return;
+		goto exit;
 
 	type = get_receive_type (service);
 
 	if (type == SEND_INVALID || type == SEND_SEND)
-		return;
+		goto exit;
 
 	info = g_malloc0 (sizeof (*info));
 	info->type = type;
@@ -1374,6 +1374,9 @@ mail_receive_service (CamelService *service)
 	default:
 		g_return_if_reached ();
 	}
+
+exit:
+	g_object_unref (session);
 }
 
 void
diff --git a/modules/online-accounts/camel-sasl-xoauth.c b/modules/online-accounts/camel-sasl-xoauth.c
index 45ad212..1ebe99c 100644
--- a/modules/online-accounts/camel-sasl-xoauth.c
+++ b/modules/online-accounts/camel-sasl-xoauth.c
@@ -278,12 +278,12 @@ sasl_xoauth_challenge_sync (CamelSasl *sasl,
 	gboolean success;
 
 	service = camel_sasl_get_service (sasl);
-	session = camel_service_get_session (service);
+	session = camel_service_ref_session (service);
 	registry = e_mail_session_get_registry (E_MAIL_SESSION (session));
 
 	goa_client = goa_client_new_sync (cancellable, error);
 	if (goa_client == NULL)
-		return NULL;
+		goto exit;
 
 	uid = camel_service_get_uid (service);
 	account_id = sasl_xoauth_find_account_id (registry, uid);
@@ -299,7 +299,7 @@ sasl_xoauth_challenge_sync (CamelSasl *sasl,
 			"the org.gnome.OnlineAccounts service from "
 			"which to obtain an authentication token."));
 		g_object_unref (goa_client);
-		return NULL;
+		goto exit;
 	}
 
 	goa_account = goa_object_get_account (goa_object);
@@ -364,6 +364,9 @@ sasl_xoauth_challenge_sync (CamelSasl *sasl,
 
 	/* IMAP and SMTP services will Base64-encode the request. */
 
+exit:
+	g_object_unref (session);
+
 	return byte_array;
 }
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