libxl: free values in XLU_ConfigSetting.

Fixes these valgrind reported leaks, found with "valgrind xl create -n ..."

==21170== 8 bytes in 3 blocks are definitely lost in loss record 1 of 3
==21170== at 0x4022F0A: malloc (vg_replace_malloc.c:236)
==21170== by 0x411B22F: strdup (in /lib/i686/cmov/libc-2.7.so)
==21170== by 0x4030085: xlu__cfgl_strdup (libxlu_cfg.c:290)
==21170== by 0x402F3C4: xlu__cfg_yylex (libxlu_cfg_l.l:37)
==21170== by 0x402DD86: xlu__cfg_yyparse (libxlu_cfg_y.c:1338)
==21170== by 0x40308AE: xlu_cfg_readdata (libxlu_cfg.c:85)
==21170== by 0x804DBE4: parse_config_data (xl_cmdimpl.c:591)
==21170== by 0x8056EE4: create_domain (xl_cmdimpl.c:1381)
==21170== by 0x80582AE: main_create (xl_cmdimpl.c:3178)
==21170== by 0x804B54B: main (xl.c:76)
==21170==
==21170== 57 bytes in 2 blocks are definitely lost in loss record 2 of 3
==21170== at 0x4022F0A: malloc (vg_replace_malloc.c:236)
==21170== by 0x402FE22: xlu__cfgl_dequote (libxlu_cfg.c:307)
==21170== by 0x402F4B4: xlu__cfg_yylex (libxlu_cfg_l.l:52)
==21170== by 0x402DD86: xlu__cfg_yyparse (libxlu_cfg_y.c:1338)
==21170== by 0x40308AE: xlu_cfg_readdata (libxlu_cfg.c:85)
==21170== by 0x804DBE4: parse_config_data (xl_cmdimpl.c:591)
==21170== by 0x8056EE4: create_domain (xl_cmdimpl.c:1381)
==21170== by 0x80582AE: main_create (xl_cmdimpl.c:3178)
==21170== by 0x804B54B: main (xl.c:76)
==21170==
==21170== 111 bytes in 6 blocks are definitely lost in loss record 3 of 3
==21170== at 0x4022F0A: malloc (vg_replace_malloc.c:236)
==21170== by 0x402FE22: xlu__cfgl_dequote (libxlu_cfg.c:307)
==21170== by 0x402F4ED: xlu__cfg_yylex (libxlu_cfg_l.l:56)
==21170== by 0x402DD86: xlu__cfg_yyparse (libxlu_cfg_y.c:1338)
==21170== by 0x40308AE: xlu_cfg_readdata (libxlu_cfg.c:85)
==21170== by 0x804DBE4: parse_config_data (xl_cmdimpl.c:591)
==21170== by 0x8056EE4: create_domain (xl_cmdimpl.c:1381)
==21170== by 0x80582AE: main_create (xl_cmdimpl.c:3178)
==21170== by 0x804B54B: main (xl.c:76)

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

     1.1 --- a/tools/libxl/libxlu_cfg.c	Wed Aug 04 15:58:10 2010 +0100
     1.2 +++ b/tools/libxl/libxlu_cfg.c	Wed Aug 04 16:00:13 2010 +0100
     1.3 @@ -91,7 +91,11 @@ int xlu_cfg_readdata(XLU_Config *cfg, co
     1.4  }
     1.5  
     1.6  void xlu__cfg_set_free(XLU_ConfigSetting *set) {
     1.7 +    int i;
     1.8 +
     1.9      free(set->name);
    1.10 +    for (i=0; i<set->nvalues; i++)
    1.11 +        free(set->values[i]);
    1.12      free(set->values);
    1.13      free(set);
    1.14  }