linux-kernel - Re: [PATCH 4/4] watchdog device drivers:pc87413_wdt: Continuing revision of conversion of pc87413_wdt to use common watchdog interface, removed undeclared identifiers

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Date:   Mon, 29 Jul 2019 19:28:14 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Mark Balantzyan <mbalant3@...il.com>
Cc:     wim@...ux-watchdog.org, linux-kernel@...r.kernel.org,
        linux-watchdog@...r.kernel.org, andrianov@...ras.ru
Subject: Re: [PATCH 4/4] watchdog device drivers:pc87413_wdt: Continuing
 revision of conversion of pc87413_wdt to use common watchdog interface,
 removed undeclared identifiers

On 7/29/19 7:15 PM, Mark Balantzyan wrote:
> There is a potential for the variable swc_base_addr in the call chain of the
> driver initialization function (init) to be used before initialization. This
> brought up the need for, by rewriting the driver to use the common watchdog
> interface, ensuring to have all resources in place. This patch addresses this
> need by rewriting into common watchdog interface utilization for the driver.
> 
> Signed-off-by: Mark Balantzyan <mbalant3@...il.com>
> 
> ---
>   drivers/watchdog/pc87413_wdt.c | 1 -
>   1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c
> index bc6c4e19..6863145a 100644
> --- a/drivers/watchdog/pc87413_wdt.c
> +++ b/drivers/watchdog/pc87413_wdt.c
> @@ -370,7 +370,6 @@ reboot_unreg:
>   static void __exit pc87413_exit(void)
>   {
>   	watchdog_unregister_device(&pc87413wdt_wdd);
> -	unregister_reboot_notifier(&pc87413_notifier);

This needs to be in patch 2.

>   	release_region(swc_base_addr, 0x20);
>   
>   	pr_info("watchdog component driver removed\n");
>