From: Razvan Stefanescu razvan.stefanescu@microchip.com
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... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/tty/serial/atmel_serial.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1400,7 +1400,6 @@ atmel_handle_transmit(struct uart_port *
atmel_port->hd_start_rx = false; atmel_start_rx(port); - return; }
atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx);