Re: [PATCH v2] can: etas_es58x: fix error handling
From: Johan Hovold <johan@kernel.org>
Date: 2021-11-15 08:17:12
Also in:
linux-can, lkml
From: Johan Hovold <johan@kernel.org>
Date: 2021-11-15 08:17:12
Also in:
linux-can, lkml
On Mon, Nov 15, 2021 at 11:15:07AM +0300, Pavel Skripkin wrote:
On 11/15/21 11:11, Johan Hovold wrote:quoted
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].
Yeah, I saw that, but that doesn't necessarily mean it is correct. You're still responsible for the changes you make and need to be able to argue why they are correct. Johan