linux-kernel - Re: [PATCH v2] usbnet: smsc95xx: disable carrier check while suspending

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Date:   Fri, 02 Nov 2018 23:50:10 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     frieder.schrempf@...tron.de
Cc:     steve.glendinning@...well.net, UNGLinuxDriver@...rochip.com,
        netdev@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v2] usbnet: smsc95xx: disable carrier check while
 suspending

From: Frieder Schrempf <frieder.schrempf@...tron.de>
Date: Wed, 31 Oct 2018 22:52:19 +0100

> We need to make sure, that the carrier check polling is disabled
> while suspending. Otherwise we can end up with usbnet_read_cmd()
> being issued when only usbnet_read_cmd_nopm() is allowed. If this
> happens, read operations lock up.
> 
> Fixes: d69d169493 ("usbnet: smsc95xx: fix link detection for disabled autonegotiation")
> Cc: <stable@...r.kernel.org>
> Signed-off-by: Frieder Schrempf <frieder.schrempf@...tron.de>

Applied and queued up for -stable.