From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v2] usbnet: smsc95xx: disable carrier check while
 suspending
Date: Fri, 02 Nov 2018 23:50:10 -0700 (PDT)
Message-ID: <20181102.235010.2148666995129291039.davem@davemloft.net>
References: <1541022739-24678-1-git-send-email-frieder.schrempf@kontron.de>
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Cc: steve.glendinning@shawell.net, UNGLinuxDriver@microchip.com,
        netdev@vger.kernel.org, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org, stable@vger.kernel.org
To: frieder.schrempf@kontron.de
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <1541022739-24678-1-git-send-email-frieder.schrempf@kontron.de>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: netdev.vger.kernel.org

From: Frieder Schrempf <frieder.schrempf@kontron.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@vger.kernel.org>
> Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>

Applied and queued up for -stable.