[BRIDGE] ebtables: fix allocation in net/bridge/netfilter/ebtables.c

Allocate an array of 'struct ebt_chainstack *', the current code allocates
array of 'struct ebt_chainstack'.

akpm: converted to use the

	foo = alloc(sizeof(*foo))

form.  Which would have prevented this from happening in the first place.

akpm: also removed unneeded typecast.

akpm: what on earth is this code doing anyway?  cpu_possible_map can be
sparse..
Signed-off-by: NJayachandran C. <c.jayachandran@gmail.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/bridge/netfilter/ebtables.c

@@ -824,9 +824,9 @@ static int translate_table(struct ebt_replace *repl,
 	if (udc_cnt) {
 		/* this will get free'd in do_replace()/ebt_register_table()
 		   if an error occurs */
-		newinfo->chainstack = (struct ebt_chainstack **)
-		   vmalloc((highest_possible_processor_id()+1) 
-				   		* sizeof(struct ebt_chainstack));
+		newinfo->chainstack =
+			vmalloc((highest_possible_processor_id()+1)
+				   	* sizeof(*(newinfo->chainstack)));
 		if (!newinfo->chainstack)
 			return -ENOMEM;
 		for_each_possible_cpu(i) {