* bcache.c (free_bcache): Do not free NULL.

gdb/ChangeLog

@@ -1,3 +1,8 @@
+Wed Apr 19 17:03:07 2000  Andrew Cagney  <cagney@b1.cygnus.com>
+
+	From Philippe De Muyter <phdm@macqel.be>:
+	* bcache.c (free_bcache): Do not free NULL.
+
 Wed Apr 19 16:37:47 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 
 	* TODO: Cleanup.

gdb/bcache.c

@@ -189,7 +189,8 @@ void
 free_bcache (struct bcache *bcache)
 {
   obstack_free (&bcache->cache, 0);
-  free (bcache->bucket);
+  if (bcache->bucket)
+    free (bcache->bucket);
 
   /* This isn't necessary, but at least the bcache is always in a
      consistent state.  */