dm-ioctl(): In retrieve_status(), make sure we don't overrun the ioctl
buffer.  [Kevin Corry]
--- diff/drivers/md/dm-ioctl.c	2004-04-07 11:32:30.744839656 +0100
+++ source/drivers/md/dm-ioctl.c	2004-04-07 11:32:58.068685800 +0100
@@ -815,6 +815,10 @@ static void retrieve_status(struct dm_ta
 
 		outptr += sizeof(struct dm_target_spec);
 		remaining = len - (outptr - outbuf);
+		if (remaining <= 0) {
+			param->flags |= DM_BUFFER_FULL_FLAG;
+			break;
+		}
 
 		/* Get the status/table string from the target driver */
 		if (ti->type->status) {