[PATCH 2/2] x86/irq/i8259: Configure null pic to have one legacy IRQ

[Mario Limonciello]

If the system is configured with the NULL PIC, the system should
still be able to set up the timer IRQ at IRQ 0.

Link: https://lore.kernel.org/linux-kernel/878r7z4kb4.ffs@tglx/
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
 arch/x86/kernel/i8259.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 43c1c24e934b..885687e64e4e 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -424,7 +424,7 @@ static int legacy_pic_probe(void)
 }
 
 struct legacy_pic null_legacy_pic = {
-	.nr_legacy_irqs = 0,
+	.nr_legacy_irqs = 1,
 	.chip = &dummy_irq_chip,
 	.mask = legacy_pic_uint_noop,
 	.unmask = legacy_pic_uint_noop,
-- 
2.34.1