More memory leak fixes
More memory leak fixes

pierrezurek/libmtp,Bluerise/libmtp,mmalecki/libmtp,jemc/libmtp,philipl/libmtp,kbhomes/libmtp-zune,philipl/libmtp,vmandela/libmtp,philipl/libmtp,reverendhomer/libmtp,mmalecki/libmtp,yifanlu/libMTP,libmtp/libmtp,libmtp/libmtp,vmandela/libmtp,kbhomes/libmtp-zune,reverendhomer/libmtp,Bluerise/libmtp,jemc/libmtp,yifanlu/libMTP,jemc/libmtp,libmtp/libmtp,jemc/libmtp,reverendhomer/libmtp,mmalecki/libmtp,pierrezurek/libmtp,reverendhomer/libmtp,Bluerise/libmtp,olunx/libmtp,olunx/libmtp,olunx/libmtp