charset.c (load_charset_map): Don't deref NULL on failed malloc.

src/ChangeLog

+2011-01-31  Jim Meyering  <meyering@redhat.com>
+
+	* charset.c (load_charset_map): Don't deref NULL on failed malloc.
+	Use xmalloc rather than malloc.
+
 2011-01-30  Paul Eggert  <eggert@cs.ucla.edu>
 	strftime: import from gnulib

src/charset.c

@@ -292,7 +292,7 @@ load_charset_map (struct charset *charset, struct charset_map_entries *entries,
       else
 	{
 	  if (! temp_charset_work)
-	    temp_charset_work = malloc (sizeof (*temp_charset_work));
+	    temp_charset_work = xmalloc (sizeof (*temp_charset_work));
 	  if (control_flag == 1)
 	    {
 	      memset (temp_charset_work->table.decoder, -1,