From: Razvan Stefanescu Date: Tue, 13 Aug 2019 07:40:25 +0000 (+0300) Subject: tty/serial: atmel: reschedule TX after RX was started X-Git-Tag: v4.9.194~34 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5b30e8bdea5f833d22364038ea5a782dae0061eb;p=platform%2Fkernel%2Flinux-amlogic.git 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 Cc: stable Link: https://lore.kernel.org/r/20190813074025.16218-1-razvan.stefanescu@microchip.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index ef688aa..5782422 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1279,7 +1279,6 @@ 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);