206 static int do_vm86_irq_handling(int subfunction, int irqnumber);
792 static inline void free_vm86_irq(int irqnumber)  in free_vm86_irq()  argument
796 	free_irq(irqnumber, NULL);  in free_vm86_irq()
797 	vm86_irqs[irqnumber].tsk = NULL;  in free_vm86_irq()
800 	irqbits &= ~(1 << irqnumber);  in free_vm86_irq()
812 static inline int get_and_reset_irq(int irqnumber)  in get_and_reset_irq()  argument
818 	if (invalid_vm86_irq(irqnumber)) return 0;  in get_and_reset_irq()
819 	if (vm86_irqs[irqnumber].tsk != current) return 0;  in get_and_reset_irq()
821 	bit = irqbits & (1 << irqnumber);  in get_and_reset_irq()
824 		enable_irq(irqnumber);  in get_and_reset_irq()
833 static int do_vm86_irq_handling(int subfunction, int irqnumber)  in do_vm86_irq_handling()  argument
838 			return get_and_reset_irq(irqnumber);  in do_vm86_irq_handling()
844 			int sig = irqnumber >> 8;  in do_vm86_irq_handling()
845 			int irq = irqnumber & 255;  in do_vm86_irq_handling()
857 			if (invalid_vm86_irq(irqnumber)) return -EPERM;  in do_vm86_irq_handling()
858 			if (!vm86_irqs[irqnumber].tsk) return 0;  in do_vm86_irq_handling()
859 			if (vm86_irqs[irqnumber].tsk != current) return -EPERM;  in do_vm86_irq_handling()
860 			free_vm86_irq(irqnumber);  in do_vm86_irq_handling()