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Subject[PATCH 7/7] USB: serial: cp210x: clean up auto-RTS handling
Date
Clear the RTS bits of the flow-control request before determining the
new value when updating the settings.

Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/usb/serial/cp210x.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index f00b736f3cd3..cc4f63a06f9e 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -1163,9 +1163,9 @@ static void cp210x_set_flow_control(struct tty_struct *tty,
else
ctl_hs |= CP210X_SERIAL_DTR_INACTIVE;

+ flow_repl &= ~CP210X_SERIAL_RTS_MASK;
if (C_CRTSCTS(tty)) {
ctl_hs |= CP210X_SERIAL_CTS_HANDSHAKE;
- flow_repl &= ~CP210X_SERIAL_RTS_MASK;
if (port_priv->rts)
flow_repl |= CP210X_SERIAL_RTS_FLOW_CTL;
else
@@ -1173,7 +1173,6 @@ static void cp210x_set_flow_control(struct tty_struct *tty,
port_priv->crtscts = true;
} else {
ctl_hs &= ~CP210X_SERIAL_CTS_HANDSHAKE;
- flow_repl &= ~CP210X_SERIAL_RTS_MASK;
if (port_priv->rts)
flow_repl |= CP210X_SERIAL_RTS_ACTIVE;
else
--
2.26.2
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