diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 607c780..9a35266 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -57,7 +57,7 @@
 	if (!irq_desc[irq].chip->set_affinity || no_irq_affinity)
 		return -EIO;
 
-	err = cpumask_parse(buffer, count, new_value);
+	err = cpumask_parse_user(buffer, count, new_value);
 	if (err)
 		return err;