linux-kernel - Re: [PATCH 1/2] irqchip/aspeed-i2c-ic: Fix irq_of_parse_and

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Date:   Sat, 23 Apr 2022 10:43:44 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Joel Stanley <joel@....id.au>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andrew Jeffery <andrew@...id.au>,
        Eddie James <eajames@...ux.ibm.com>, linux-i2c@...r.kernel.org,
        openbmc@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-aspeed@...ts.ozlabs.org
Subject: Re: [PATCH 1/2] irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value

On Sat, 23 Apr 2022 10:30:53 +0100,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> wrote:
> 
> On 22/04/2022 12:45, Krzysztof Kozlowski wrote:
> > The irq_of_parse_and_map() returns 0 on failure, not a negative ERRNO.
> > 
> > Fixes: f48e699ddf70 ("irqchip/aspeed-i2c-ic: Add I2C IRQ controller for Aspeed")
> > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> > ---
> >  drivers/irqchip/irq-aspeed-i2c-ic.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/irqchip/irq-aspeed-i2c-ic.c b/drivers/irqchip/irq-aspeed-i2c-ic.c
> > index a47db16ff960..cef1291ae783 100644
> > --- a/drivers/irqchip/irq-aspeed-i2c-ic.c
> > +++ b/drivers/irqchip/irq-aspeed-i2c-ic.c
> > @@ -77,7 +77,7 @@ static int __init aspeed_i2c_ic_of_init(struct device_node *node,
> >  	}
> >  
> >  	i2c_ic->parent_irq = irq_of_parse_and_map(node, 0);
> > -	if (i2c_ic->parent_irq < 0) {
> > +	if (!i2c_ic->parent_irq) {
> >  		ret = i2c_ic->parent_irq;
> 
> This is wrong (same in patch 2). I will send a v2.

While you're at it, please add a cover letter when sending a series
containing more than a single patch.

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.