Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 38554bc..a4ace61 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -149,7 +149,7 @@
 		res = action->handler(irq, action->dev_id);
 		trace_irq_handler_exit(irq, action, res);
 
-		if (WARN_ONCE(!irqs_disabled(),"irq %u handler %pF enabled interrupts\n",
+		if (WARN_ONCE(!irqs_disabled(),"irq %u handler %pS enabled interrupts\n",
 			      irq, action->handler))
 			local_irq_disable();
 
@@ -166,7 +166,7 @@
 
 			__irq_wake_thread(desc, action);
 
-			/* Fall through to add to randomness */
+			/* Fall through - to add to randomness */
 		case IRQ_HANDLED:
 			*flags |= action->flags;
 			break;