Re: [PATCH AUTOSEL 3.18 36/98] usb: serial: handle -ENODEV quietly in generic_submit_read_urb

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On Fri, Oct 26, 2018 at 10:39:29AM +0200, Johan Hovold wrote:
Hi Sasha,

On Thu, Oct 25, 2018 at 10:17:51AM -0400, Sasha Levin wrote:
From: Jeremiah Mahler <jmmahler@xxxxxxxxx>

[ Upstream commit 04f9c6e6d17584340fb6c8a9469a0e6df28876d2 ]

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@xxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

This isn't a bug fix, but more of a clean up patch and hence does not
qualify for stable. So specifically the stable tag was left out on
purpose.

I never got a chance to talk to you in Edinburgh, but Greg mentioned you
had an opt-out list for your autosel work which I'd like to be added to.

I always mark bug fixes that qualify for stable as such so anything else
that your process picks up would already have been considered and
rejected by me.

I'll drop it, thanks Johan!

--
Thanks,
Sasha



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