From: Pavel Skripkin <paskripkin@gmail.com>
To: Johan Hovold <johan@kernel.org>
Cc: mailhol.vincent@wanadoo.fr, wg@grandegger.com,
mkl@pengutronix.de, davem@davemloft.net, kuba@kernel.org,
linux-can@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] can: etas_es58x: fix error handling
Date: Mon, 15 Nov 2021 11:15:07 +0300 [thread overview]
Message-ID: <7a98b159-f9bf-c0dd-f244-aec6c9a7dcaa@gmail.com> (raw)
In-Reply-To: <YZIWT9ATzN611n43@hovoldconsulting.com>
On 11/15/21 11:11, Johan Hovold wrote:
> Just a drive-by comment:
>
> Are you sure about this move of the netdev[channel_idx] initialisation?
> What happens if the registered can device is opened before you
> initialise the pointer? NULL-deref in es58x_send_msg()?
>
> You generally want the driver data fully initialised before you register
> the device so this looks broken.
>
> And either way it is arguably an unrelated change that should go in a
> separate patch explaining why it is needed and safe.
>
It was suggested by Vincent who is the maintainer of this driver [1].
[1]
https://lore.kernel.org/linux-can/CAMZ6Rq+orfUuUCCgeWyGc7P0vp3t-yjf_g9H=Jhk43f1zXGfDQ@mail.gmail.com/
With regards,
Pavel Skripkin
next prev parent reply other threads:[~2021-11-15 8:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-14 20:58 [PATCH] " Pavel Skripkin
2021-11-15 5:27 ` Vincent MAILHOL
2021-11-15 7:40 ` Pavel Skripkin
2021-11-15 7:51 ` [PATCH v2] " Pavel Skripkin
2021-11-15 8:11 ` Johan Hovold
2021-11-15 8:15 ` Pavel Skripkin [this message]
2021-11-15 8:16 ` Johan Hovold
2021-11-15 8:30 ` Pavel Skripkin
2021-11-15 9:24 ` Vincent MAILHOL
2021-11-15 9:26 ` Pavel Skripkin
2021-11-15 8:37 ` [PATCH v3] " Pavel Skripkin
2021-11-15 9:15 ` Vincent MAILHOL
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