location-gps-nmea: fix memory leaks

There are potential memory leaks in MMLocationGpsNmea:

- When the `trace' string provided to location_gps_nmea_take_trace() isn't
  added to the hash table, its ownership is still considered transferred.
  It should thus be freed. Similarly, the `trace_type' string isn't
  added the hash table and should thus be freed.

- mm_location_gps_nmea_add_trace() duplicates a given trace string and
  then passes the trace copy to location_gps_nmea_take_trace(). When
  location_gps_nmea_take_trace() returns FALSE, the ownership of the
  copy isn't transferred. mm_location_gps_nmea_add_trace() should thus
  free the copy.

This patch fixes the above memory leaks by having
location_gps_nmea_take_trace() always take the ownership of the `trace'
string and internally free `trace' and `trace_type' when necessary.

0 files changed, 0 insertions, 0 deletions