In the unlikely event that setting the software flow-control characters fails the other flow-control settings should still be updated (just like all other terminal settings).
Move out the error message printed by the set_chars() helper to make it more obvious that this is intentional.
Fixes: 7748feffcd80 ("USB: serial: cp210x: add support for software flow control") Cc: stable@vger.kernel.org # 5.11 Signed-off-by: Johan Hovold johan@kernel.org --- drivers/usb/serial/cp210x.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 09b845d0da41..fd198031de71 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -1163,10 +1163,8 @@ static int cp210x_set_chars(struct usb_serial_port *port,
kfree(dmabuf);
- if (result < 0) { - dev_err(&port->dev, "failed to set special chars: %d\n", result); + if (result < 0) return result; - }
return 0; } @@ -1218,8 +1216,10 @@ static void cp210x_set_flow_control(struct tty_struct *tty, chars.bXoffChar = STOP_CHAR(tty);
ret = cp210x_set_chars(port, &chars); - if (ret) - return; + if (ret) { + dev_err(&port->dev, "failed to set special chars: %d\n", + ret); + } }
mutex_lock(&port_priv->mutex);