linux-kernel - Re: [PATCH] irqchip/irq-ls1x: Missing error code in ls1x_intc_of

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Message-ID: <a90ad2ff-acc1-0baf-d7e4-1292bb1c8464@codeaurora.org>
Date:   Fri, 29 Mar 2019 00:44:30 +0530
From:   Mukesh Ojha <mojha@...eaurora.org>
To:     Dan Carpenter <dan.carpenter@...cle.com>,
        Marc Zyngier <marc.zyngier@....com>,
        Jiaxun Yang <jiaxun.yang@...goat.com>
Cc:     Jason Cooper <jason@...edaemon.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] irqchip/irq-ls1x: Missing error code in
 ls1x_intc_of_init()


On 3/28/2019 8:08 PM, Dan Carpenter wrote:
> We forgot to set "err" on this error path.

What is "this" error path, please describe

like

"Currently, when irq_domain_add_linear() fails, error code does not get 
set due to which

it return zero which is wrong.Fix it by setting appropriate error code."

> Fixes: 9e543e22e204 ("irqchip: Add driver for Loongson-1 interrupt controller")
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>


Other wise change looks good .
Reviewed-by: Mukesh Ojha <mojha@...eaurora.org>

-Mukesh

> ---
>   drivers/irqchip/irq-ls1x.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/irqchip/irq-ls1x.c b/drivers/irqchip/irq-ls1x.c
> index 86b72fbd3b45..353111a10413 100644
> --- a/drivers/irqchip/irq-ls1x.c
> +++ b/drivers/irqchip/irq-ls1x.c
> @@ -130,6 +130,7 @@ static int __init ls1x_intc_of_init(struct device_node *node,
>   					     NULL);
>   	if (!priv->domain) {
>   		pr_err("ls1x-irq: cannot add IRQ domain\n");
> +		err = -ENOMEM;
>   		goto out_iounmap;
>   	}
>