[PATCH] ipmi: fix event queue limit

The event handler mechanism in the IPMI driver had a limit on the number of
received events, but the counts were not being updated.  Update the counts
to impose a limit.  This is not a critical fix, as this function (the
sending of the events) has to be turned on by the user, anyway.  This
avoids problems if they forget to turn it back off.
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/char/ipmi/ipmi_msghandler.c

@@ -941,6 +941,7 @@ int ipmi_set_gets_events(ipmi_user_t user, int val)
 			list_del(&msg->link);
 			list_add_tail(&msg->link, &msgs);
 		}
+		intf->waiting_events_count = 0;
 	}
 
 	/* Hold the events lock while doing this to preserve order. */
@@ -2916,6 +2917,7 @@ static int handle_read_event_rsp(ipmi_smi_t          intf,
 
 		copy_event_into_recv_msg(recv_msg, msg);
 		list_add_tail(&(recv_msg->link), &(intf->waiting_events));
+		intf->waiting_events_count++;
 	} else {
 		/* There's too many things in the queue, discard this
 		   message. */