Re: [PATCH] mailbox: th1520: fix clock imbalance on probe failure

[Michal Wilczynski <m.wilczynski@samsung.com>]

On 10/17/25 07:54, Johan Hovold wrote:
> The purpose of the devm_add_action_or_reset() helper is to call the
> action function in case adding an action ever fails so drop the clock
> disable from the error path to avoid disabling the clocks twice.
> 
> Fixes: 5d4d263e1c6b ("mailbox: Introduce support for T-head TH1520 Mailbox driver")
> Cc: Michal Wilczynski <m.wilczynski@samsung.com>
> Signed-off-by: Johan Hovold <johan@kernel.org>
> ---
>  drivers/mailbox/mailbox-th1520.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/mailbox/mailbox-th1520.c b/drivers/mailbox/mailbox-th1520.c
> index a6b2aa9ae952..626957c2e435 100644
> --- a/drivers/mailbox/mailbox-th1520.c
> +++ b/drivers/mailbox/mailbox-th1520.c
> @@ -435,10 +435,8 @@ static int th1520_mbox_probe(struct platform_device *pdev)
>  	}
>  
>  	ret = devm_add_action_or_reset(dev, th1520_disable_clk, priv);
> -	if (ret) {
> -		clk_bulk_disable_unprepare(ARRAY_SIZE(priv->clocks), priv->clocks);
> +	if (ret)
>  		return ret;
> -	}
>  
>  	/*
>  	 * The address mappings in the device tree align precisely with those

Hi,
Thanks for your fix. I believe it is correct as devm_add_action_or_reset
will call th1520_disable_clk on failure, like you noticed.

Reviewed-by: Michal Wilczynski <m.wilczynski@samsung.com>

Best regards,
-- 
Michal Wilczynski <m.wilczynski@samsung.com>