linux-kernel - Re: [PATCH 3/3] thermal: exynos: Defer probe if vtmu is present but not registered

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Date:	Fri, 19 Feb 2016 09:37:00 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Javier Martinez Canillas <javier@....samsung.com>,
	linux-kernel@...r.kernel.org
Cc:	linux-arm-kernel@...ts.infradead.org,
	Kukjin Kim <kgene@...nel.org>, linux-pm@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org,
	Lukasz Majewski <l.majewski@...sung.com>,
	Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>
Subject: Re: [PATCH 3/3] thermal: exynos: Defer probe if vtmu is present but
 not registered

On 19.02.2016 03:19, Javier Martinez Canillas wrote:
> The driver doesn't check if the regulator_get_optional return value is
> -EPROBE_DEFER so it will wrongly assume that the regulator couldn't be
> found just because the regulator driver wasn't registered yet, i.e:
> 
> exynos-tmu 10060000.tmu: Regulator node (vtmu) not found
> 
> In this case the return value should be propagated to allow the driver
> probe function to be deferred until the regulator driver is registered.
> 
> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
> 
> ---
> 
>  drivers/thermal/samsung/exynos_tmu.c | 2 ++
>  1 file changed, 2 insertions(+)
> 

Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>

Best regards,
Krzysztof