linux-kernel - Re: [PATCH] soc: ti: ti_sci_pm_domains: check for proper args count in xlate

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Message-ID: <80b42f3e-d333-3e01-478d-a46b8660db1e@oracle.com>
Date:   Wed, 28 Oct 2020 16:17:53 -0700
From:   santosh.shilimkar@...cle.com
To:     Nishanth Menon <nm@...com>, Tero Kristo <t-kristo@...com>
Cc:     ssantosh@...nel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] soc: ti: ti_sci_pm_domains: check for proper args count
 in xlate

On 10/28/20 2:43 PM, Nishanth Menon wrote:
> On 16:17-20201028, Tero Kristo wrote:
>> K2G devices still only use single parameter for power-domains property,
>> so check for this properly in the driver. Without this, every peripheral
>> fails to probe resulting in boot failure.
>>
>> Fixes: efa5c01cd7ee ("soc: ti: ti_sci_pm_domains: switch to use multiple genpds instead of one")
>> Reported-by: Nishanth Menon <nm@...com>
>> Signed-off-by: Tero Kristo <t-kristo@...com>
>> ---
>>   drivers/soc/ti/ti_sci_pm_domains.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/soc/ti/ti_sci_pm_domains.c b/drivers/soc/ti/ti_sci_pm_domains.c
>> index af2126d2b2ff..8afb3f45d263 100644
>> --- a/drivers/soc/ti/ti_sci_pm_domains.c
>> +++ b/drivers/soc/ti/ti_sci_pm_domains.c
>> @@ -91,7 +91,7 @@ static struct generic_pm_domain *ti_sci_pd_xlate(
>>   	struct genpd_onecell_data *genpd_data = data;
>>   	unsigned int idx = genpdspec->args[0];
>>   
>> -	if (genpdspec->args_count < 2)
>> +	if (genpdspec->args_count != 1 && genpdspec->args_count != 2)
>>   		return ERR_PTR(-EINVAL);
>>   
>>   	if (idx >= genpd_data->num_domains) {
> 
> 
> Thanks Tero.
> 
> Acked-by: Nishanth Menon <nm@...com>
> 
> Santosh: can we queue this one for 5.10? - I am trying to track and get
> all platforms booting and functional in 5.10
> 
Sure. Can you re-post with my ack to soc@...nel.org and copy me ?
Will try to get this one applied.

Regards,
Santosh