Re: [PATCH] lpfc: Fix NULL pointer dereference during PCI error recovery

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On 05/17/2017 09:21 PM, Martin K. Petersen wrote:
> 
> Guilherme,
> 
>> Recent commit on patchset "lpfc updates for 11.2.0.14" fixed an issue
>> about dereferencing a NULL pointer on port reset. The specific commit,
>> named "lpfc: Fix system crash when port is reset.", is missing a check
>> against NULL pointer on lpfc_els_flush_cmd() though.
>>
>> Since we destroy the queues on adapter resets, like in PCI error
>> recovery path, we need the validation present on this patch in order
>> to avoid a NULL pointer dereference when trying to flush commands of
>> ELS wq, after it has been destroyed (which would lead to a kernel
>> oops).
> 
> Applied to 4.12/scsi-fixes. Thank you!
> 

Thanks Martin!




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