linux-kernel - Re: [PATCH 1/2] pinctrl: mvebu: armada-37xx: use use platform api

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Message-ID: <CAOMZO5DeA24EUjr-E=V=tGNaZ7UkOEi+F5-kEBqEB288DSNSoA@mail.gmail.com>
Date:   Wed, 18 Dec 2019 09:48:49 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Peng Fan <peng.fan@....com>
Cc:     "jason@...edaemon.net" <jason@...edaemon.net>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "gregory.clement@...tlin.com" <gregory.clement@...tlin.com>,
        "sebastian.hesselbarth@...il.com" <sebastian.hesselbarth@...il.com>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        "mripard@...nel.org" <mripard@...nel.org>,
        "wens@...e.org" <wens@...e.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 1/2] pinctrl: mvebu: armada-37xx: use use platform api

On Wed, Dec 18, 2019 at 9:44 AM Peng Fan <peng.fan@....com> wrote:

> -       nr_irq_parent = of_irq_count(np);
> +       nr_irq_parent = platform_irq_count(pdev);
> +       if (nr_irq_parent < 0) {
> +               if (nr_irq_parent != -EPROBE_DEFER)
> +                       dev_err(dev, "Couldn't determine irq count: %pe\n",
> +                               ERR_PTR(nr_irq_parent));

Why do you return ERR_PTR(nr_irq_parent) instead of simply nr_irq_parent?