a-lunev commented on a change in pull request #5252:
URL: https://github.com/apache/incubator-nuttx/pull/5252#discussion_r786398944
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File path: net/tcp/tcp_send_buffered.c
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@@ -355,10 +355,38 @@ static uint16_t psock_send_eventhandler(FAR struct
net_driver_s *dev,
FAR void *pvconn, FAR void *pvpriv,
uint16_t flags)
{
- FAR struct tcp_conn_s *conn = (FAR struct tcp_conn_s *)pvconn;
+ /* FAR struct tcp_conn_s *conn = (FAR struct tcp_conn_s *)pvconn;
+ *
+ * Do not use pvconn argument to get the TCP connection pointer (the above
+ * commented line) because pvconn is normally NULL for some events like
+ * NETDEV_DOWN. Instead, the TCP connection pointer can be reliably
+ * obtained from the corresponding TCP socket.
+ */
+
FAR struct socket *psock = (FAR struct socket *)pvpriv;
+ DEBUGASSERT(psock != NULL);
Review comment:
I'm sorry. I forgot about C89 again. Fixed.
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