Re: [PATCH 1/2] coresight: Set affinity to invalid for missing CPU phandle

[Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>]

Hi Mathieu,

Thanks for the review comments.

On 6/20/2019 11:09 PM, Mathieu Poirier wrote:
> Hi Sai,
> 
> On Thu, Jun 20, 2019 at 07:15:46PM +0530, Sai Prakash Ranjan wrote:
>> Affinity defaults to CPU0 in case of missing CPU phandle
>> and this leads to crashes in some cases because of such
>> wrong assumption. Fix this by returning -ENODEV in
>> coresight platform for such cases and then handle it
>> in the coresight drivers.
>>
>> Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
>> ---
>>   drivers/hwtracing/coresight/coresight-platform.c | 10 ++++++----
>>   1 file changed, 6 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c
>> index 3c5ceda8db24..b1ea60c210e1 100644
>> --- a/drivers/hwtracing/coresight/coresight-platform.c
>> +++ b/drivers/hwtracing/coresight/coresight-platform.c
>> @@ -160,15 +160,17 @@ static int of_coresight_get_cpu(struct device *dev)
>>   
>>   	if (!dev->of_node)
>>   		return 0;
> 
> An error should be returned if the above condition is true.
> 

Will do it, thanks.

>> +
> 
> Spurious newline
> 

This was on purpose, the code looks much cleaner.

-Sai

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