202 static int do_vm86_irq_handling(int subfunction, int irqnumber);
767 static inline void free_vm86_irq(int irqnumber)  in free_vm86_irq()  argument
771 	free_irq(irqnumber, NULL);  in free_vm86_irq()
772 	vm86_irqs[irqnumber].tsk = NULL;  in free_vm86_irq()
775 	irqbits &= ~(1 << irqnumber);  in free_vm86_irq()
787 static inline int get_and_reset_irq(int irqnumber)  in get_and_reset_irq()  argument
793 	if (invalid_vm86_irq(irqnumber)) return 0;  in get_and_reset_irq()
794 	if (vm86_irqs[irqnumber].tsk != current) return 0;  in get_and_reset_irq()
796 	bit = irqbits & (1 << irqnumber);  in get_and_reset_irq()
799 		enable_irq(irqnumber);  in get_and_reset_irq()
808 static int do_vm86_irq_handling(int subfunction, int irqnumber)  in do_vm86_irq_handling()  argument
813 			return get_and_reset_irq(irqnumber);  in do_vm86_irq_handling()
819 			int sig = irqnumber >> 8;  in do_vm86_irq_handling()
820 			int irq = irqnumber & 255;  in do_vm86_irq_handling()
832 			if (invalid_vm86_irq(irqnumber)) return -EPERM;  in do_vm86_irq_handling()
833 			if (!vm86_irqs[irqnumber].tsk) return 0;  in do_vm86_irq_handling()
834 			if (vm86_irqs[irqnumber].tsk != current) return -EPERM;  in do_vm86_irq_handling()
835 			free_vm86_irq(irqnumber);  in do_vm86_irq_handling()