From: Aki Tuomi <aki.tuomi@dovecot.fi>
Date: Wed, 17 May 2017 09:26:42 +0000 (+0300)
Subject: fts: Do not attempt to deinitialize backend if it's not set
X-Git-Tag: 2.3.0.rc1~1620
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=de5d6bb50931ea243f582ace5a31abb11b619ffe;p=thirdparty%2Fdovecot%2Fcore.git

fts: Do not attempt to deinitialize backend if it's not set

If FTS backend initialization fails or does not happen,
flist->backend might end up being NULL, and attempt to
deinitialize NULL won't end well.
---

diff --git a/src/plugins/fts/fts-storage.c b/src/plugins/fts/fts-storage.c
index 32a49ade08..370ec86805 100644
--- a/src/plugins/fts/fts-storage.c
+++ b/src/plugins/fts/fts-storage.c
@@ -830,7 +830,8 @@ static void fts_mailbox_list_deinit(struct mailbox_list *list)
 {
 	struct fts_mailbox_list *flist = FTS_LIST_CONTEXT(list);
 
-	fts_backend_deinit(&flist->backend);
+	if (flist->backend != NULL)
+		fts_backend_deinit(&flist->backend);
 	flist->module_ctx.super.deinit(list);
 }