linux-kernel - [RESEND PATCH v2 0/2] usb: serial: handle -ENODEV and -EPROTO quietly

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 10 Jan 2015 16:44:31 -0800
From:	Jeremiah Mahler <jmmahler@...il.com>
To:	Johan Hovold <johan@...nel.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	Jeremiah Mahler <jmmahler@...il.com>
Subject: [RESEND PATCH v2 0/2] usb: serial: handle -ENODEV and -EPROTO quietly

(Jan 15) Just a resend of v2 [1].

  [1]: https://lkml.org/lkml/2014/12/20/16

If a USB serial device (e.g. /dev/ttyUSB0) with an active program is
unplugged, a bunch of -ENODEV and -EPROTO errors will be produced in the
logs.  This patch set quiets these messages without changing the
original behavior.

This change is beneficial when using daemons such as slcand, which is
similar to pppd or slip, that cannot determine whether they should exit
until after the USB serial device is unplugged.  Producing these error
messages for a normal use case is not helpful.

Jeremiah Mahler (2):
  usb: serial: handle -EPROTO quietly in generic_read_bulk
  usb: serial: handle -ENODEV quietly in generic_submit_read_urb

 drivers/usb/serial/generic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
2.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/