diff options
| author | Razvan Stefanescu <razvan.stefanescu@microchip.com> | 2019-08-13 10:40:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-21 08:16:45 +0300 |
| commit | 770cee245191e1ad905942629ea987af5d02f584 (patch) | |
| tree | b9f77d37c308172221c63aca198db4db12509cad | |
| parent | 4c2f60ed8ed83bff41250b863326c2b2bab4be74 (diff) | |
| download | linux-770cee245191e1ad905942629ea987af5d02f584.tar.xz | |
tty/serial: atmel: reschedule TX after RX was started
commit d2ace81bf902a9f11d52e59e5d232d2255a0e353 upstream.
When half-duplex RS485 communication is used, after RX is started, TX
tasklet still needs to be scheduled tasklet. This avoids console freezing
when more data is to be transmitted, if the serial communication is not
closed.
Fixes: 69646d7a3689 ("tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped")
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@microchip.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190813074025.16218-1-razvan.stefanescu@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/atmel_serial.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 1cb80fe5f95c..dd8949e8fcd7 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1270,7 +1270,6 @@ atmel_handle_transmit(struct uart_port *port, unsigned int pending) atmel_port->hd_start_rx = false; atmel_start_rx(port); - return; } atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx); |