203         let r = domain.ops.map(domain, hwirq, irq);  in domain_associate()  localVariable
204         if let Err(e) = r {  in domain_associate()
249         let mut r = Ok(());  in activate_irq()  localVariable
255             r = self.do_activate_irq(Some(irq_data.clone()), reserve);  in activate_irq()
258         if r.is_err() {  in activate_irq()
262         return r;  in activate_irq()
271         let mut r = Ok(());  in do_activate_irq()  localVariable
279                     r = self.do_activate_irq(Some(parent_data), reserve);  in do_activate_irq()
282                 if r.is_err() {  in do_activate_irq()
293         return r;  in do_activate_irq()
333         let r = self.domain_set_hwirq_and_chip(domain, virq, hwirq, Some(chip), chip_data);  in domain_set_info()  localVariable
334         if r.is_err() {  in domain_set_info()