Hi Caiwen,

>> I think this is wrong as well. We should remove that context no matter
>> if online of offline, but off course you do not wanna create a new GPRS
>> context if you are actually offline, right?
>>
> 
> If the device is offline, the GPRS context atom has been released when set
> the device to offline. That's another issue has been fixed by Martin (Need
> set data->gc to NULL, because it has been release if device is offline).
> 
> It will create a new GPRS context when the device is switch to online(in
> huawei_post_online()), so don't create it here if it is offline.
> 
>

I suggest you migrate the huawei modem driver to create the gprs atom in
post_sim state instead of post_online.  It will solve many of the issues
you're trying to solve.

Regards,
-Denis