lkml.org 
[lkml]   [2021]   [Apr]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.9 30/35] USB: cdc-acm: downgrade message to debug
Date
From: Oliver Neukum <oneukum@suse.com>

commit e4c77070ad45fc940af1d7fb1e637c349e848951 upstream.

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>
---
drivers/usb/class/cdc-acm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -543,7 +543,8 @@ static void acm_port_dtr_rts(struct tty_

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)

\
 
 \ /
  Last update: 2021-04-05 10:59    [W:0.143 / U:1.296 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site