Merge pull request #4006 from qiyongzhong0/fix_at_client

fix at_client, avoid creating the same client repeatedly and prevent …
2020-11-03 10:47:13 +08:00 · 2020-11-03 10:47:13 +08:00 · ac6da8d4cf
parent cce66c4bce db0880bd26
commit ac6da8d4cf
1 changed files with 5 additions and 0 deletions
--- a/components/net/at/src/at_client.c
+++ b/components/net/at/src/at_client.c
@ -917,6 +917,11 @@ int at_client_init(const char *dev_name,  rt_size_t recv_bufsz)
    RT_ASSERT(dev_name);
    RT_ASSERT(recv_bufsz > 0);

+    if (at_client_get(dev_name) != RT_NULL)
+    {
+        return result;
+    }
+
    for (idx = 0; idx < AT_CLIENT_NUM_MAX && at_client_table[idx].device; idx++);

    if (idx >= AT_CLIENT_NUM_MAX)