Subject: Re: [PATCH v2 05/11] firewall: introduce stm32_firewall framework

From: Simon Horman <[email-masked]>
Date: Wed, 26 Jul 2023 12:22:12 +0200

On Tue, Jul 25, 2023 at 06:40:58PM +0200, Gatien Chevallier wrote:

...

> diff --git a/drivers/bus/stm32_firewall.c b/drivers/bus/stm32_firewall.c

...

> +int stm32_firewall_controller_register(struct stm32_firewall_controller *firewall_controller)
> +{
> +	struct stm32_firewall_controller *ctrl;
> +
> +	pr_info("Registering %s firewall controller\n", firewall_controller->name);
> +
> +	if (!firewall_controller)
> +		return -ENODEV;

HI Gatien,

Sorry, one more on this patch, that I missed before sending my previous
email.

firewall_controller is checked for NULL here.
But it is already dereferenced on the line above the check.

Flagged by Smatch.

...