tree 09340a058ded4cf5d5cb18499957e35dddfbd8b0
parent aa8e22128b40590b291cd13512098bf258a7e6c5
author Jeremiah Mahler <jmmahler@gmail.com> 1420983727 -0800
committer Johan Hovold <johan@kernel.org> 1421054634 +0100

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>