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| author | Razvan Stefanescu <razvan.stefanescu@microchip.com> | 2019-08-13 10:40:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-21 07:15:29 +0200 |
| commit | 50aa377272ea9aa4f5b2ebc793e26950c11ec09b (patch) | |
| tree | e3e4aeb574fc33e7a7dfb4359d8a647a1a77e2ac | |
| parent | 4632fbfda83af1c122efd1a6586f49c30fc07454 (diff) | |
| download | linux-stable-50aa377272ea9aa4f5b2ebc793e26950c11ec09b.tar.gz linux-stable-50aa377272ea9aa4f5b2ebc793e26950c11ec09b.tar.bz2 linux-stable-50aa377272ea9aa4f5b2ebc793e26950c11ec09b.zip | |
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 f747f1a1780c..9ee41ba0e55b 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -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); |