dlm: use proper type for ->ls_recover_buf

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Teigland <teigland@redhat.com>
diff --git a/fs/dlm/dir.c b/fs/dlm/dir.c
index ff97ba9..ce30136 100644
--- a/fs/dlm/dir.c
+++ b/fs/dlm/dir.c
@@ -235,7 +235,7 @@
 			 * pick namelen/name pairs out of received buffer
 			 */
 
-			b = ls->ls_recover_buf + sizeof(struct dlm_rcom);
+			b = ls->ls_recover_buf->rc_buf;
 
 			for (;;) {
 				memcpy(&namelen, b, sizeof(uint16_t));