From: Jeremiah Mahler <jmmahler@gmail.com>
To: Johan Hovold <johan@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Jeremiah Mahler <jmmahler@gmail.com>
Subject: [PATCH 0/2] usb: serial: handle -ENODEV and -EPROTO quietly
Date: Thu, 11 Dec 2014 15:29:52 -0800 [thread overview]
Message-ID: <1418340594-30469-1-git-send-email-jmmahler@gmail.com> (raw)
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 | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--
2.1.3
next reply other threads:[~2014-12-11 23:31 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-11 23:29 Jeremiah Mahler [this message]
2014-12-11 23:29 ` [PATCH 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk Jeremiah Mahler
2014-12-11 23:29 ` [PATCH 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2014-12-16 11:49 ` Johan Hovold
2014-12-15 10:23 ` [PATCH 0/2] usb: serial: handle -ENODEV and -EPROTO quietly Johan Hovold
2014-12-15 12:53 ` Jeremiah Mahler
2014-12-15 16:38 ` Greg Kroah-Hartman
2014-12-16 7:10 ` Jeremiah Mahler
2014-12-16 11:46 ` Johan Hovold
2014-12-16 11:42 ` Johan Hovold
2014-12-20 9:11 ` [PATCH v2 " Jeremiah Mahler
2014-12-20 9:11 ` [PATCH v2 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk Jeremiah Mahler
2014-12-20 12:32 ` Sergei Shtylyov
2014-12-20 12:59 ` Jeremiah Mahler
2014-12-20 16:17 ` [PATCH v2b " Jeremiah Mahler
2014-12-20 9:11 ` [PATCH v2 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2015-01-11 0:44 ` [RESEND PATCH v2 0/2] usb: serial: handle -ENODEV and -EPROTO quietly Jeremiah Mahler
2015-01-11 0:44 ` [RESEND PATCH v2 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk Jeremiah Mahler
2015-01-11 11:36 ` Johan Hovold
2015-01-11 13:31 ` Jeremiah Mahler
2015-01-11 0:44 ` [RESEND PATCH v2 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2015-01-11 13:42 ` [PATCH v3 0/2] usb: serial: silence non-critical unplug read errors Jeremiah Mahler
2015-01-11 13:42 ` [PATCH v3 1/2] usb: serial: silence all non-critical " Jeremiah Mahler
2015-01-11 13:42 ` [PATCH v3 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2015-01-12 9:27 ` [PATCH v3 0/2] usb: serial: silence non-critical unplug read errors Johan Hovold
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