From: Jeremiah Mahler <jmmahler@gmail.com>
Date: Sun, 11 Jan 2015 13:42:07 +0000 (-0800)
Subject: usb: serial: handle -ENODEV quietly in generic_submit_read_urb
X-Git-Tag: fixes-v4.0-rc1~286^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=04f9c6e6d17584340fb6c8a9469a0e6df28876d2;p=pandora-kernel.git

usb: serial: handle -ENODEV quietly in generic_submit_read_urb

If a USB serial device (e.g. /dev/ttyUSB0) with an active program is
unplugged, an -ENODEV (19) error will be produced after it gives up
trying to resubmit a read.

  usb_serial_generic_submit_read_urb - usb_submit_urb failed: -19

Add -ENODEV as one of the permanent errors along with -EPERM that
usb_serial_generic_submit_read_urb() handles quietly without an error.

Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
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