login: Fixed potential assert-crash during failed proxy authentication.

diff --git a/src/login-common/client-common-auth.c b/src/login-common/client-common-auth.c
index 8236e1e599167094573597006fb401e8395b2bd3..ec9c845765da0109fce1298c8d427bde964e5854 100644 (file)
--- a/src/login-common/client-common-auth.c
+++ b/src/login-common/client-common-auth.c
@@ -24,7 +24,7 @@ void client_auth_failed(struct client *client)
 {
        i_free_and_null(client->master_data_prefix);
 
-       if (client->auth_initializing)
+       if (client->auth_initializing || client->destroyed)
                return;
 
        if (client->io != NULL)