isimodem: Use convenience func for strerror

diff --git a/drivers/isimodem/network-registration.c b/drivers/isimodem/network-registration.c
index c5710ff..89ff3c1 100644 (file)
--- a/drivers/isimodem/network-registration.c
+++ b/drivers/isimodem/network-registration.c
@@ -156,7 +156,7 @@ static gboolean check_response_status(const GIsiMessage *msg, uint8_t msgid)
        uint8_t cause;
 
        if (g_isi_msg_error(msg) < 0) {
-               DBG("Error: %s", strerror(-g_isi_msg_error(msg)));
+               DBG("Error: %s", g_isi_msg_strerror(msg));
                return FALSE;
        }