# HG changeset patch
# User Timo Sirainen <timo.sirainen@dovecot.fi>
# Date 1470668208 -10800
# Node ID 4ad948d0a6a4c70c939bcd4bf24353ce79ba5bef
# Parent  778bf8914a7f38d0a7a7a3bf66967593bfd4f6a6
lib-auth: Avoid crash after user iteration if connection failed.

diff -r 778bf8914a7f -r 4ad948d0a6a4 src/lib-auth/auth-master.c
--- a/src/lib-auth/auth-master.c	Mon Aug 08 17:13:15 2016 +0300
+++ b/src/lib-auth/auth-master.c	Mon Aug 08 17:56:48 2016 +0300
@@ -699,7 +699,8 @@
 
 	if (auth_master_run_cmd_pre(conn, str_c(str)) < 0)
 		ctx->failed = TRUE;
-	io_loop_set_current(conn->prev_ioloop);
+	if (conn->prev_ioloop != NULL)
+		io_loop_set_current(conn->prev_ioloop);
 	conn->prefix = DEFAULT_USERDB_LOOKUP_PREFIX;
 	return ctx;
 }