linux-kernel - Re: [PATCH 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read

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Message-ID: <20141216114940.GJ6778@localhost>
Date:	Tue, 16 Dec 2014 12:49:40 +0100
From:	Johan Hovold <johan@...nel.org>
To:	Jeremiah Mahler <jmmahler@...il.com>
Cc:	Johan Hovold <johan@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] usb: serial: handle -ENODEV quietly in
 generic_submit_read_urb

On Thu, Dec 11, 2014 at 03:29:54PM -0800, Jeremiah Mahler wrote:
> 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@...il.com>

I'll apply this one once v3.19-rc1 is out.

Thanks,
Johan
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