netdev - Re: [PATCH net] r8152: fix the list rx_done may be used without initialization

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Message-ID: <20170314085335.j3tqbph5xfr3bn7w@x230>
Date:   Tue, 14 Mar 2017 09:53:35 +0100
From:   Petr Vorel <petr.vorel@...il.com>
To:     Hayes Wang <hayeswang@...ltek.com>
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net] r8152: fix the list rx_done may be used without
 initialization

Hi Hayes,

> The list rx_done would be initialized when the linking on occurs.
> Therefore, if a napi is scheduled without any linking on before,
> the following kernel panic would happen.

> 	BUG: unable to handle kernel NULL pointer dereference at 000000000000008
> 	IP: [<ffffffffc085efde>] r8152_poll+0xe1e/0x1210 [r8152]
> 	PGD 0
> 	Oops: 0002 [#1] SMP

thanks for fixing!

Kind regards,
Petr