linux-kernel - Re: [PATCH v4 02/14] irqchip/csky-apb-intc: Fix potential resource leaks

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Date:   Wed, 1 Jul 2020 10:40:35 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Tiezhu Yang <yangtiezhu@...ngson.cn>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>, Guo Ren <guoren@...nel.org>,
        linux-csky@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH v4 02/14] irqchip/csky-apb-intc: Fix potential resource
 leaks

> … were not released in a few error cases. …

Another small wording adjustment:
  … in two error cases. …


…
> +++ b/drivers/irqchip/irq-csky-apb-intc.c
…
> @@ -126,10 +127,17 @@ ck_intc_init_comm(struct device_node *node, struct device_node *parent)
…
> +err_iounmap:
> +	iounmap(reg_base);
> +	return ret;
>  }
…

How do you think about to use the statement “return -ENOMEM;”?
Can the local variable “ret” be omitted in this function implementation?

Regards,
Markus