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Message-ID: <428e2e84-522b-c61e-8701-97f2d482fd26@csgroup.eu>
Date: Tue, 22 Feb 2022 15:28:08 +0000
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: "cgel.zte@...il.com" <cgel.zte@...il.com>,
"oss@...error.net" <oss@...error.net>
CC: Zeal Robot <zealci@....com.cn>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Minghao Chi <chi.minghao@....com.cn>,
"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: [PATCH] platforms/83xx: Use of_device_get_match_data()
Resending as I accidentaly sent my response to the list only.
Le 21/02/2022 à 03:03, cgel.zte@...il.com a écrit :
> From: Minghao Chi (CGEL ZTE) <chi.minghao@....com.cn>
>
> Use of_device_get_match_data() to simplify the code.
>
> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@....com.cn>
> ---
> arch/powerpc/platforms/83xx/suspend.c | 7 +------
> 1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c
> index bb147d34d4a6..9ae9268b683c 100644
> --- a/arch/powerpc/platforms/83xx/suspend.c
> +++ b/arch/powerpc/platforms/83xx/suspend.c
> @@ -322,17 +322,12 @@ static const struct platform_suspend_ops mpc83xx_suspend_ops = {
> static const struct of_device_id pmc_match[];
> static int pmc_probe(struct platform_device *ofdev)
> {
> - const struct of_device_id *match;
> struct device_node *np = ofdev->dev.of_node;
> struct resource res;
> const struct pmc_type *type;
> int ret = 0;
>
> - match = of_match_device(pmc_match, &ofdev->dev);
> - if (!match)
> - return -EINVAL;
> -
> - type = match->data;
> + type = of_device_get_match_data(&ofdev->dev);
What happens when of_device_get_match_data() returns NULL ?
>
> if (!of_device_is_available(np))
> return -ENODEV;
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