From 1e2e986e444840b3ec143b0523647e199b9040bb Mon Sep 17 00:00:00 2001
From: Aki Tuomi <aki.tuomi@dovecot.fi>
Date: Wed, 31 Jan 2018 19:48:49 +0200
Subject: [PATCH] lib-imap: imap_match_deinit(NULL) should be a no-op

---
 src/lib-imap/imap-match.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/lib-imap/imap-match.c b/src/lib-imap/imap-match.c
index 3d9bd459ef..076635f7c1 100644
--- a/src/lib-imap/imap-match.c
+++ b/src/lib-imap/imap-match.c
@@ -172,6 +172,8 @@ imap_match_init_multiple(pool_t pool, const char *const *patterns,
 
 void imap_match_deinit(struct imap_match_glob **glob)
 {
+	if (glob == NULL || *glob == NULL)
+		return;
 	p_free((*glob)->pool, (*glob)->patterns);
 	p_free((*glob)->pool, *glob);
 	*glob = NULL;