sms: fix type error

diff --git a/src/sms.c b/src/sms.c
index b7051b9..aee9a61 100644 (file)
--- a/src/sms.c
+++ b/src/sms.c
@@ -69,7 +69,7 @@ struct ofono_sms {
        struct sms_assembly *assembly;
        guint ref;
        GQueue *txq;
-       gint tx_source;
+       guint tx_source;
        struct ofono_message_waiting *mw;
        unsigned int mw_watch;
        struct ofono_sim *sim;