diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c
index ecdcba9d1220..9d1b8c0aaf93 100644
--- a/arch/powerpc/platforms/powernv/opal-irqchip.c
+++ b/arch/powerpc/platforms/powernv/opal-irqchip.c
@@ -174,8 +174,14 @@ void opal_event_shutdown(void)
 
 	/* First free interrupts, which will also mask them */
 	for (i = 0; i < opal_irq_count; i++) {
-		if (opal_irqs[i])
+		if (!opal_irqs[i])
+			continue;
+
+		if (in_interrupt())
+			disable_irq_nosync(opal_irqs[i]);
+		else
 			free_irq(opal_irqs[i], NULL);
+
 		opal_irqs[i] = 0;
 	}
 }