AlexanderVasiljev commented on a change in pull request #2036:
URL: https://github.com/apache/incubator-nuttx/pull/2036#discussion_r508487710
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File path: drivers/serial/serial.c
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@@ -1771,7 +1771,18 @@ void uart_connected(FAR uart_dev_t *dev, bool connected)
void uart_reset_sem(FAR uart_dev_t *dev)
{
nxsem_reset(&dev->xmitsem, 0);
- nxsem_reset(&dev->recvsem, 1);
+
+ /* Wake up reading function if it is blocked */
+
+ if (dev->recvwaiting)
Review comment:
I was sure polls are canceled at higher level of nx_close. But they are
not.
We can add
**uart_pollnotify(dev, POLLIN);**
to the close function.
This is not the logic any low level driver should care of.
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