diff --git a/components/net/at/src/at_client.c b/components/net/at/src/at_client.c index 4eb2c055bae40d7097c6221bc1e84a3a79956c03..de4c8a408e8b8888a088796c3874524ab59b74b2 100644 --- a/components/net/at/src/at_client.c +++ b/components/net/at/src/at_client.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2006-2021, RT-Thread Development Team + * Copyright (c) 2006-2023, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * @@ -610,7 +610,8 @@ at_client_t at_client_get(const char *dev_name) for (idx = 0; idx < AT_CLIENT_NUM_MAX; idx++) { - if (rt_strcmp(at_client_table[idx].device->parent.name, dev_name) == 0) + if (at_client_table[idx].device && + (rt_strcmp(at_client_table[idx].device->parent.name, dev_name) == 0)) { return &at_client_table[idx]; }