Re: [PATCH] Fix segfault in HDP during device re-creation

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>> ---
>>  health/hdp.c |    1 +
>>  1 files changed, 1 insertions(+), 0 deletions(-)
>> 
>> diff --git a/health/hdp.c b/health/hdp.c
>> index 1eba8e1..d361b27 100644
>> --- a/health/hdp.c
>> +++ b/health/hdp.c
>> @@ -259,6 +259,7 @@ static void device_unref_mcl(struct hdp_device *hdp_device)
>>        if (!hdp_device->mcl)
>>                return;
>> 
>> +       mcap_close_mcl(hdp_device->mcl, FALSE);
>>        mcap_mcl_unref(hdp_device->mcl);
>>        hdp_device->mcl = NULL;
>>        hdp_device->mcl_conn = FALSE;
>> --
>> 1.7.1
>> 
>> 
> 
> Please Elvis, try this solution and tell us if it fix the segfault problem.

Yes, it seems to have fixed the problem. And far cleaner :)

I hadn't proposed a lookalike solution because this seems to disable MCL caching completely. HDP already calls mcap_close_mcl(cache=FALSE) when takes the initiative of closing the MCL; this patch takes care of remaining case.

The only place hdp.c calls mcap_close_mcl(cache=TRUE) is when mcap_mcl_set_cb() fails, which seems "impossible", because it only depends on valid parameters to succeed.

So, perhaps it would be better to get rid of caching code in mcap.c?--
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