linux-kernel - Re: [PATCH v3 1/1] stmmac: fix oops on rmmod after assigning ip addr

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Message-Id: <20150416.141427.1085248733060476395.davem@davemloft.net>
Date:	Thu, 16 Apr 2015 14:14:27 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	pure.logic@...us-software.ie
Cc:	peppe.cavallaro@...com, netdev@...r.kernel.org,
	andriy.shevchenko@...ux.intel.com, hock.leong.kweh@...el.com,
	boon.leong.ong@...el.com, dan.odonovan@...tex.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/1] stmmac: fix oops on rmmod after assigning ip
 addr

From: Bryan O'Donoghue <pure.logic@...us-software.ie>
Date: Thu, 16 Apr 2015 17:56:03 +0100

> An oops exists in the flow of stmmac_release().
> phy_ethtool_get_wol() depends on phydev->drv.
> phydev->drv will be null after stmmac_mdio_unreg() completes.
> 
> Steps to reproduce on Quark X1000:
> 
> 1. ifconfig eth0 192.168.0.1
> 2. rmmod stmmac_pci
> 
> To fix this stmmac_mdio_unreg() should be run after unregister_netdev().
> 
> Signed-off-by: Bryan O'Donoghue <pure.logic@...us-software.ie>
> Reported-by: Dan O'Donovan <dan.odonovan@...tex.com>

Applied.
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