[PATCH] Don't pass down NULL path to dbus if no modem.

[Zhu Yanhai <yanhai.zhu@linux.intel.com>]

We shouldn't pass down NULL object path to dbus if there's no modems,
which is a common case on many netbooks.

Signed-off-by: Zhu Yanhai <yanhai.zhu@linux.intel.com>
---
 audio/telephony-ofono.c |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/audio/telephony-ofono.c b/audio/telephony-ofono.c
index 2778cfc..4f4bf88 100644
--- a/audio/telephony-ofono.c
+++ b/audio/telephony-ofono.c
@@ -574,12 +574,20 @@ static void list_modem_reply(DBusPendingCall *call, void *user_data)
 	while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
 
 		dbus_message_iter_get_basic(&sub, &modem_obj_path_local);
+		if (modem_obj_path_local == NULL)
+			continue;
+
 		modem_obj_path = g_strdup(modem_obj_path_local);
-		debug("modem_obj_path is %p, %s\n", modem_obj_path,
+		debug("modem_obj_path is %p, %s", modem_obj_path,
 						modem_obj_path);
 		dbus_message_iter_next(&sub);
 	}
 
+	if (modem_obj_path == NULL) {
+		debug("no modem found.");
+		goto done;
+	}
+
 	ret = get_registration_and_signal_status();
 	if (ret < 0)
 		error("get_registration_and_signal_status() failed(%d)", ret);
-- 
1.6.2.2