linux-kernel - Re: [PATCH 1/2] arm64: perf: Don't use of

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Date:	Fri, 05 Jun 2015 11:53:09 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Will Deacon <will.deacon@....com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 1/2] arm64: perf: Don't use of_node after putting it

On 06/05/2015 07:45 AM, Will Deacon wrote:
> On Wed, Jun 03, 2015 at 09:53:37PM +0100, Stephen Boyd wrote:
>>   arch/arm64/kernel/perf_event.c | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
>> index 702591f6180a..8af7784a8e35 100644
>> --- a/arch/arm64/kernel/perf_event.c
>> +++ b/arch/arm64/kernel/perf_event.c
>> @@ -1340,12 +1340,13 @@ static int armpmu_device_probe(struct platform_device *pdev)
>>   			if (arch_find_n_match_cpu_physical_id(dn, cpu, NULL))
>>   				break;
>>   
>> -		of_node_put(dn);
>>   		if (cpu >= nr_cpu_ids) {
>>   			pr_warn("Failed to find logical CPU for %s\n",
>>   				dn->name);
>> +			of_node_put(dn);
>>   			break;
>>   		}
>> +		of_node_put(dn);
>>   
>>   		irqs[i] = cpu;
>>   	}
> Yeah, I agree this needs changing but given (a) the CPU node isn't going
> to disappear and (b) this patch will conflict horribly with my queue for
> 4.2, do you mind if I sit on this until after the merge window (as a fix
> for 4.2)?
>
>

Sure, no problem.

-- 
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