Revert "Uprev libmtp to 1.1.12"

src/playlist-spl.c

 /**
  * \File playlist-spl.c
  *
  * Playlist_t to Samsung (.spl) and back conversion functions.
  *
  * Copyright (C) 2008 Alistair Boyle <alistair.js.boyle@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ skipping 597 matching lines @@
 
   // TRACKS
   int i;
   char* f;
   for(i=0;i<trackno;i++) {
     discover_filepath_from_id(&f, tracks[i], folders, files);
 
     if(f != NULL) {
       append_text_t(&c, f);
       LIBMTP_PLST_DEBUG("track %d = %s (%u)\n", i+1, f, tracks[i]);
-      free(f);
     }
     else
       LIBMTP_ERROR("failed to find filepath for track=%d\n", tracks[i]);
   }
 
   // FOOTER
   append_text_t(&c, "");
   append_text_t(&c, "END PLAYLIST");
   if(ver_major == 2) {
     append_text_t(&c, "");
@@ skipping 211 matching lines @@
 {
   if(*t == NULL) {
     *t = malloc(sizeof(text_t));
   }
   else {
     (*t)->next = malloc(sizeof(text_t));
     (*t) = (*t)->next;
   }
   (*t)->text = strdup(s);
 }