linux-kernel - Re: [PATCH 2/2] i2c / ACPI: Assign IRQ for devices that have GpioInt automatically

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Date:	Wed, 29 Apr 2015 11:56:06 +0200
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Octavian Purdila <octavian.purdila@...el.com>,
	Robert Dolca <robert.dolca@...el.com>,
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org
Subject: Re: [PATCH 2/2] i2c / ACPI: Assign IRQ for devices that have GpioInt
 automatically


> -	if (!client->irq && dev->of_node) {
> -		int irq = of_irq_get(dev->of_node, 0);
> +	if (client->irq <= 0) {
> +		int irq = -ENOENT;

Why the move from !client->irq to <= 0? If I didn't miss something,
interrupt numbers are still a sleeping dog with all the unsigned vs
signed fuzz. If this change is needed, this needs proper description and
ideally a seperate patch.


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