From: slemieux.tyco@gmail.com (Sylvain Lemieux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] Input: lpc32xx-keys - fix invalid error handling of a requested irq
Date: Wed, 07 Dec 2016 13:13:07 -0500 [thread overview]
Message-ID: <1481134387.9248.8.camel@localhost> (raw)
In-Reply-To: <20161205014753.2092-1-vz@mleia.com>
On Mon, 2016-12-05 at 03:47 +0200, Vladimir Zapolskiy wrote:
> Semantics of NR_IRQS is different on machines with SPARSE_IRQ option
> disabled or enabled, in the latter case IRQs are allocated starting
> at least from the value specified by NR_IRQS and going upwards, so
> the check of (irq >= NR_IRQ) to decide about an error code returned by
> platform_get_irq() is completely invalid, don't attempt to overrule
> irq subsystem in the driver.
>
> The change fixes lpc32xx_keys driver initialization on boot:
>
> lpc32xx_keys 40050000.key: failed to get platform irq
> lpc32xx_keys: probe of 40050000.key failed with error -22
>
> Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
> ---
> drivers/input/keyboard/lpc32xx-keys.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
Cosmetic - please update the subject line when doing the commit:
replace " -" by ":" after lpc32xx-keys
Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
next prev parent reply other threads:[~2016-12-07 18:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-05 1:47 [PATCH] Input: lpc32xx-keys - fix invalid error handling of a requested irq Vladimir Zapolskiy
2016-12-07 18:13 ` Sylvain Lemieux [this message]
2016-12-07 18:46 ` Dmitry Torokhov
2016-12-07 18:51 ` Sylvain Lemieux
2016-12-08 1:22 ` Dmitry Torokhov
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