284 	if (dev->ext) {  in interrupt_hw()
285 		if (dev->ext->irq_mask & isr) {  in interrupt_hw()
286 			if (dev->ext->irq_func)  in interrupt_hw()
287 				dev->ext->irq_func(dev, &isr);  in interrupt_hw()
288 			isr &= ~dev->ext->irq_mask;  in interrupt_hw()
332 	struct saa7146_extension *ext = pci_ext->ext;  in saa7146_init_one()  local
425 	dev->ext = ext;  in saa7146_init_one()
443 	if (ext->probe && ext->probe(dev)) {  in saa7146_init_one()
448 	if (ext->attach(dev, pci_ext)) {  in saa7146_init_one()
501 	dev->ext->detach(dev);  in saa7146_remove_one()
526 int saa7146_register_extension(struct saa7146_extension* ext)  in saa7146_register_extension()  argument
528 	DEB_EE("ext:%p\n", ext);  in saa7146_register_extension()
530 	ext->driver.name = ext->name;  in saa7146_register_extension()
531 	ext->driver.id_table = ext->pci_tbl;  in saa7146_register_extension()
532 	ext->driver.probe = saa7146_init_one;  in saa7146_register_extension()
533 	ext->driver.remove = saa7146_remove_one;  in saa7146_register_extension()
535 	pr_info("register extension '%s'\n", ext->name);  in saa7146_register_extension()
536 	return pci_register_driver(&ext->driver);  in saa7146_register_extension()
539 int saa7146_unregister_extension(struct saa7146_extension* ext)  in saa7146_unregister_extension()  argument
541 	DEB_EE("ext:%p\n", ext);  in saa7146_unregister_extension()
542 	pr_info("unregister extension '%s'\n", ext->name);  in saa7146_unregister_extension()
543 	pci_unregister_driver(&ext->driver);  in saa7146_unregister_extension()