diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 4368b5ed5604180ac512e9bc7370d7d2544a58a1..a24d37d4cf5158e17ad85421a1bee6d1af14e299 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -586,14 +586,14 @@ struct irq_host *irq_alloc_host(struct device_node *of_node,
 			irq_map[i].host = host;
 			smp_wmb();
 
-			/* Clear norequest flags */
-			irq_clear_status_flags(i, IRQ_NOREQUEST);
-
 			/* Legacy flags are left to default at this point,
 			 * one can then use irq_create_mapping() to
 			 * explicitly change them
 			 */
 			ops->map(host, i, i);
+
+			/* Clear norequest flags */
+			irq_clear_status_flags(i, IRQ_NOREQUEST);
 		}
 		break;
 	case IRQ_HOST_MAP_LINEAR:
@@ -664,8 +664,6 @@ static int irq_setup_virq(struct irq_host *host, unsigned int virq,
 		goto error;
 	}
 
-	irq_clear_status_flags(virq, IRQ_NOREQUEST);
-
 	/* map it */
 	smp_wmb();
 	irq_map[virq].hwirq = hwirq;
@@ -676,6 +674,8 @@ static int irq_setup_virq(struct irq_host *host, unsigned int virq,
 		goto errdesc;
 	}
 
+	irq_clear_status_flags(virq, IRQ_NOREQUEST);
+
 	return 0;
 
 errdesc:
@@ -819,6 +819,8 @@ void irq_dispose_mapping(unsigned int virq)
 	if (host->revmap_type == IRQ_HOST_MAP_LEGACY)
 		return;
 
+	irq_set_status_flags(virq, IRQ_NOREQUEST);
+
 	/* remove chip and handler */
 	irq_set_chip_and_handler(virq, NULL, NULL);
 
@@ -848,8 +850,6 @@ void irq_dispose_mapping(unsigned int virq)
 	smp_mb();
 	irq_map[virq].hwirq = host->inval_irq;
 
-	irq_set_status_flags(virq, IRQ_NOREQUEST);
-
 	irq_free_descs(virq, 1);
 	/* Free it */
 	irq_free_virt(virq, 1);