Commit e4c77070 authored Mar 11, 2021 by Oliver Neukum Committed by Greg Kroah-Hartman Mar 23, 2021

USB: cdc-acm: downgrade message to debug



This failure is so common that logging an error here amounts
to spamming log files.

Reviewed-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210311130126.15972-2-oneukum@suse.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 6069e3e9

drivers/usb/class/cdc-acm.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -659,7 +659,8 @@ static void acm_port_dtr_rts(struct tty_port *port, int raise)

		res = acm_set_control(acm, val);
		if (res && (acm->ctrl_caps & USB_CDC_CAP_LINE))
		dev_err(&acm->control->dev, "failed to set dtr/rts\n");
		/* This is broken in too many devices to spam the logs */
		dev_dbg(&acm->control->dev, "failed to set dtr/rts\n");
		}

		static int acm_port_activate(struct tty_port port, struct tty_struct tty)