Re: [PATCH] Try 2, Fix release function in IPMI device model

[Corey Minyard <minyard@acm.org>]

Dmitry Torokhov wrote:

>On 3/22/06, Corey Minyard <minyard@acm.org> wrote:
>  
>
>> struct bmc_device
>> {
>>-       struct platform_device dev;
>>+       struct platform_device *dev;
>>       struct ipmi_device_id  id;
>>       unsigned char          guid[16];
>>       int                    guid_set;
>>-       int                    interfaces;
>>+
>>+       struct kref            refcount;
>>
>>    
>>
>
>Hi,
>
>I am confused as to why you need kref here. Just unregister/kfree
>memory occupied by your device structure after doing
>platform_device_unregister and that's it. platform code won't
>reference your memory and your attribute code should not be called
>from module exit code so everything shoudl be fine.
>  
>
This structure represents a "BMC", which is a microcontroller
that does managment functions.  There may be more than one
interface to a BMC, so the kref keeps track of all the interfaces
referencing the structure.

-Corey