linux-kernel - Re: [PATCH v2 1/2] usb: serial: handle -EPROTO quietly in generic_read

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 20 Dec 2014 04:59:52 -0800
From:	Jeremiah Mahler <jmmahler@...il.com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	Johan Hovold <johan@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH v2 1/2] usb: serial: handle -EPROTO quietly in
 generic_read_bulk

Sergei,

On Sat, Dec 20, 2014 at 03:32:42PM +0300, Sergei Shtylyov wrote:
> Hello.
> 
> On 12/20/2014 12:11 PM, Jeremiah Mahler wrote:
> 
> >If a USB serial device driver, which is built using the generic serial
> >driver, is unplugged while there is an active program using the device,
> 
>    Driver is unplugged? :-)
> 
Yes, that doesn't make sense.  Good catch, thanks :-)

> >it will spam the logs with -EPROTO (71) messages as it attempts to
> >retry.
> 
> >Most serial usb drivers (metro-usb, pl2303, mos7840, ...) only output
> >these messages for debugging.  The generic driver treats these as
> >errors.
> 
> >Change the default output for the generic serial driver from error to
> >debug.
> 
> >Signed-off-by: Jeremiah Mahler <jmmahler@...il.com>
> 
> [...]
> 
> WBR, Sergei
> 

-- 
- Jeremiah Mahler
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/