From 51899a63b42ee01df676b0624df4e81a517c3571 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Fri, 3 Nov 2017 15:30:57 +0100 Subject: serdev: ttyport: release tty lock sooner on open Release the tty lock once tty-driver open returns to make it clear that it does not protect neither tty->termios or the serport flags. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serdev/serdev-ttyport.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serdev/serdev-ttyport.c b/drivers/tty/serdev/serdev-ttyport.c index ce7ad0acee7a..f76a8e044e4e 100644 --- a/drivers/tty/serdev/serdev-ttyport.c +++ b/drivers/tty/serdev/serdev-ttyport.c @@ -104,6 +104,8 @@ static int ttyport_open(struct serdev_controller *ctrl) if (ret) goto err_close; + tty_unlock(serport->tty); + /* Bring the UART into a known 8 bits no parity hw fc state */ ktermios = tty->termios; ktermios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | @@ -117,7 +119,6 @@ static int ttyport_open(struct serdev_controller *ctrl) set_bit(SERPORT_ACTIVE, &serport->flags); - tty_unlock(serport->tty); return 0; err_close: -- cgit v1.2.3