linux-kernel - Re: [PATCH] thermal: rcar_thermal: Use platform_get_irq

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Date:   Mon, 20 Dec 2021 15:28:20 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Niklas Söderlund <niklas.soderlund@...natech.se>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linux PM list <linux-pm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Prabhakar <prabhakar.csengg@...il.com>
Subject: Re: [PATCH] thermal: rcar_thermal: Use platform_get_irq_optional() to
 get the interrupt

On 20/12/2021 15:26, Geert Uytterhoeven wrote:

[ ... ]

>>
>> if (irq == -ENXIO)
>>         continue;
>>
>> if (irq <= 0)
>>         goto out;
>>
>>
>> Did I miss your point ?
> 
> I think so, as I don't see your point, neither ;-)
> 
> I meant (a) there is no need to continue the loop when there are no
> more interrupts present, and (b) irq == 0 cannot happen, so the cod
> can be simplified to:
> 
>     if (irq == -ENXIO)
>             break;
>     if (irq < 0) {
>             ret = irq;
>             goto out_unregister;
>     }
> 

Makes sense for me now, thanks :)




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