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authorJohan Hovold <johan@kernel.org>2017-01-06 21:15:10 +0300
committerJohan Hovold <johan@kernel.org>2017-01-09 16:55:37 +0300
commit4e2da44691cffbfffb1535f478d19bc2dca3e62b (patch)
tree894e998a2947ffce117732f92b171a3f89e1501a /drivers/usb
parenta121103c922847ba5010819a3f250f1f7fc84ab8 (diff)
downloadlinux-4e2da44691cffbfffb1535f478d19bc2dca3e62b.tar.xz
USB: serial: ch341: fix initial modem-control state
DTR and RTS will be asserted by the tty-layer when the port is opened and deasserted on close (if HUPCL is set). Make sure the initial state is not-asserted before the port is first opened as well. Fixes: 664d5df92e88 ("USB: usb-serial ch341: support for DTR/RTS/CTS") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/serial/ch341.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 2597b83a8ae2..d133e72fe888 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -258,7 +258,6 @@ static int ch341_port_probe(struct usb_serial_port *port)
spin_lock_init(&priv->lock);
priv->baud_rate = DEFAULT_BAUD_RATE;
- priv->line_control = CH341_BIT_RTS | CH341_BIT_DTR;
r = ch341_configure(port->serial->dev, priv);
if (r < 0)