LUA SD: simplify and fix a memory leak (untested)

modules/misc/lua/vlc.c

@@ -196,69 +196,55 @@ int vlclua_scripts_batch_execute( vlc_object_t *p_this,
                                   lua_State * L,
                                   void * user_data)
 {
-    int i_ret = VLC_EGENERIC;
-
-    char **ppsz_filelist = NULL;
-    char **ppsz_fileend  = NULL;
-    char **ppsz_file;
-
     char  *ppsz_dir_list[] = { NULL, NULL, NULL, NULL };
-    char **ppsz_dir;
 
-    i_ret = vlclua_dir_list( p_this, luadirname, ppsz_dir_list );
+    int i_ret = vlclua_dir_list( p_this, luadirname, ppsz_dir_list );
     if( i_ret != VLC_SUCCESS )
         return i_ret;
     i_ret = VLC_EGENERIC;
 
-
-    for( ppsz_dir = ppsz_dir_list; *ppsz_dir; ppsz_dir++ )
+    for( char **ppsz_dir = ppsz_dir_list; *ppsz_dir; ppsz_dir++ )
     {
+        char **ppsz_filelist;
         int i_files;
 
-        if( ppsz_filelist )
-        {
-            for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend;
-                 ppsz_file++ )
-                free( *ppsz_file );
-            free( ppsz_filelist );
-            ppsz_filelist = NULL;
-        }
-
         msg_Dbg( p_this, "Trying Lua scripts in %s", *ppsz_dir );
         i_files = utf8_scandir( *ppsz_dir, &ppsz_filelist, file_select,
                                 file_compare );
-        if( i_files < 1 ) continue;
-        ppsz_fileend = ppsz_filelist + i_files;
+        if( i_files < 0 )
+            continue;
 
-        for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend; ppsz_file++ )
+        char **ppsz_file = ppsz_filelist;
+        char **ppsz_fileend = ppsz_filelist + i_files;
+
+        while( ppsz_file < ppsz_fileend )
         {
-            char  *psz_filename;
+            char *psz_filename;
+
             if( asprintf( &psz_filename,
-                          "%s" DIR_SEP "%s", *ppsz_dir, *ppsz_file ) < 0)
+                          "%s" DIR_SEP "%s", *ppsz_dir, *ppsz_file ) == -1 )
+                psz_filename = NULL;
+            free( *(ppsz_file++) );
+
+            if( likely(psz_filename != NULL) )
             {
-                vlclua_dir_list_free( ppsz_dir_list );
-                return VLC_ENOMEM;
+                msg_Dbg( p_this, "Trying Lua playlist script %s",
+                         psz_filename );
+                i_ret = func( p_this, psz_filename, L, user_data );
+                free( psz_filename );
+                if( i_ret == VLC_SUCCESS )
+                    break;
             }
-            msg_Dbg( p_this, "Trying Lua playlist script %s", psz_filename );
-
-            i_ret = func( p_this, psz_filename, L, user_data );
-
-            free( psz_filename );
-
-            if( i_ret == VLC_SUCCESS ) break;
         }
-        if( i_ret == VLC_SUCCESS ) break;
-    }
 
-    if( ppsz_filelist )
-    {
-        for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend;
-             ppsz_file++ )
-            free( *ppsz_file );
+        while( ppsz_file < ppsz_fileend )
+            free( *(ppsz_file++) );
         free( ppsz_filelist );
+
+        if( i_ret == VLC_SUCCESS )
+            break;
     }
     vlclua_dir_list_free( ppsz_dir_list );
-
     return i_ret;
 }