diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 4ef555c50db8da27f02106e1ca50e656ad47e6bb..570d1ea1db5daee44bff774b3e8cc8a37b717f1b 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -102,7 +102,6 @@ int set_irq_chip(unsigned int irq, struct irq_chip *chip)
 	if (!chip)
 		chip = &no_irq_chip;
 
-	desc = irq_to_desc(irq);
 	spin_lock_irqsave(&desc->lock, flags);
 	irq_chip_set_defaults(chip);
 	desc->chip = chip;