iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tty/serial: atmel: reschedule TX after RX was started

Browse Source 
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>
This commit is contained in:
Razvan Stefanescu 2019-08-13 10:40:25 +03:00 committed by Greg Kroah-Hartman
parent 4632fbfda8
commit 50aa377272
1 changed files with 0 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/tty/serial/atmel_serial.c
View File

@ -1276,7 +1276,6 @@ 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);