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Mix_Music *Mix_LoadMUSType_RW(SDL_RWops *rw, Mix_MusicType type, int freesrc)

{

    // SOME CODE

     /* Allocate memory for the music structure */
     music = (Mix_Music *)SDL_malloc(sizeof(Mix_Music));
     if (music == NULL ) {
      Mix_SetError("Out of memory");
      return NULL;
     }
     music->error = 0;

     switch (type) {
     #ifdef WAV_MUSIC
     case MUS_WAV:
      /* The WAVE loader needs the first 4 bytes of the header */
      {
       Uint8 magic[5];
       int start = SDL_RWtell(rw);
       if (SDL_RWread(rw, magic, 1, 4) != 4) {
        Mix_SetError("Couldn't read from RWops");

        SDL_free(music); // This line is added
        return MUS_NONE;
       }

    // SOME CODE

  }

In this code 'music' is dynamically allocated. But memory get leaked at return MUS_NONE.

So it is important to free the 'music'. Patch is added in the above code with the comment // This line is added.

Thanks & Regards,
Nitz