207 static int do_vm86_irq_handling(int subfunction, int irqnumber);
800 static inline void free_vm86_irq(int irqnumber)  in free_vm86_irq()  argument
804 	free_irq(irqnumber, NULL);  in free_vm86_irq()
805 	vm86_irqs[irqnumber].tsk = NULL;  in free_vm86_irq()
808 	irqbits &= ~(1 << irqnumber);  in free_vm86_irq()
820 static inline int get_and_reset_irq(int irqnumber)  in get_and_reset_irq()  argument
826 	if (invalid_vm86_irq(irqnumber)) return 0;  in get_and_reset_irq()
827 	if (vm86_irqs[irqnumber].tsk != current) return 0;  in get_and_reset_irq()
829 	bit = irqbits & (1 << irqnumber);  in get_and_reset_irq()
832 		enable_irq(irqnumber);  in get_and_reset_irq()
841 static int do_vm86_irq_handling(int subfunction, int irqnumber)  in do_vm86_irq_handling()  argument
846 			return get_and_reset_irq(irqnumber);  in do_vm86_irq_handling()
852 			int sig = irqnumber >> 8;  in do_vm86_irq_handling()
853 			int irq = irqnumber & 255;  in do_vm86_irq_handling()
865 			if (invalid_vm86_irq(irqnumber)) return -EPERM;  in do_vm86_irq_handling()
866 			if (!vm86_irqs[irqnumber].tsk) return 0;  in do_vm86_irq_handling()
867 			if (vm86_irqs[irqnumber].tsk != current) return -EPERM;  in do_vm86_irq_handling()
868 			free_vm86_irq(irqnumber);  in do_vm86_irq_handling()