kref_read
kref_read(&pdev->dev.kobj.kref));
__func__, __LINE__, ep, kref_read(&(ep)->kref)); \
WARN_ON(kref_read(&(ep)->kref) < 1); \
__func__, __LINE__, ep, kref_read(&(ep)->kref)); \
BUG_ON(kref_read(&qhp->ep->com.kref) < 2);
if (kref_read(&table->data_vec[i]->kref) > 1) {
kref_read(&table->data_vec[i]->kref));