167 static int do_vm86_irq_handling(int subfunction, int irqnumber);
758 static inline void free_vm86_irq(int irqnumber)  in free_vm86_irq()  argument
762 	free_irq(irqnumber, NULL);  in free_vm86_irq()
763 	vm86_irqs[irqnumber].tsk = NULL;  in free_vm86_irq()
766 	irqbits &= ~(1 << irqnumber);  in free_vm86_irq()
778 static inline int get_and_reset_irq(int irqnumber)  in get_and_reset_irq()  argument
784 	if (invalid_vm86_irq(irqnumber)) return 0;  in get_and_reset_irq()
785 	if (vm86_irqs[irqnumber].tsk != current) return 0;  in get_and_reset_irq()
787 	bit = irqbits & (1 << irqnumber);  in get_and_reset_irq()
790 		enable_irq(irqnumber);  in get_and_reset_irq()
799 static int do_vm86_irq_handling(int subfunction, int irqnumber)  in do_vm86_irq_handling()  argument
804 			return get_and_reset_irq(irqnumber);  in do_vm86_irq_handling()
810 			int sig = irqnumber >> 8;  in do_vm86_irq_handling()
811 			int irq = irqnumber & 255;  in do_vm86_irq_handling()
823 			if (invalid_vm86_irq(irqnumber)) return -EPERM;  in do_vm86_irq_handling()
824 			if (!vm86_irqs[irqnumber].tsk) return 0;  in do_vm86_irq_handling()
825 			if (vm86_irqs[irqnumber].tsk != current) return -EPERM;  in do_vm86_irq_handling()
826 			free_vm86_irq(irqnumber);  in do_vm86_irq_handling()