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spinlock protection on data question



If I have a some data structure that is used by two driver functions, for 
instance:

driver_read(){

  spin_lockirq_save(&(data->spinlock), flags)
  /* use data*/
  spinlock_irq_restore(&(data->spinlock), flags);
}


driver_disconnect()
{

  if(data)
   {
  kfree(data);
   }
}


I see a problem here if for instance disconnect freed the data while read was 
using it. Am I right?



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