From 271b8142d96d496e1ef5872d9680af60ebc356d0 Mon Sep 17 00:00:00 2001
From: Aki Tuomi <aki.tuomi@dovecot.fi>
Date: Mon, 12 Dec 2016 10:40:20 +0200
Subject: [PATCH] lib-storage: Do not try to recover missing list index

Fixes Panic: file mailbox-list-index.c: line 342 (mailbox_list_index_parse_records): assertion failed: (node != NULL)
---
 src/lib-storage/list/mailbox-list-index.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/lib-storage/list/mailbox-list-index.c b/src/lib-storage/list/mailbox-list-index.c
index 75921cd3b5..2674cd114a 100644
--- a/src/lib-storage/list/mailbox-list-index.c
+++ b/src/lib-storage/list/mailbox-list-index.c
@@ -308,6 +308,9 @@ static int mailbox_list_index_parse_records(struct mailbox_list_index *ilist,
 				      &data, &expunged);
 		if (data == NULL) {
 			*error_r = "Missing list extension data";
+			/* list index is missing, no point trying
+			   to do second scan either */
+			count = 0;
 			break;
 		}
 		irec = data;