diff --git a/arch/nios2/kernel/signal.c b/arch/nios2/kernel/signal.c
index a42dd09..d8a087c 100644
--- a/arch/nios2/kernel/signal.c
+++ b/arch/nios2/kernel/signal.c
@@ -252,6 +252,7 @@
 		switch (retval) {
 		case ERESTART_RESTARTBLOCK:
 			restart = -2;
+			fallthrough;
 		case ERESTARTNOHAND:
 		case ERESTARTSYS:
 		case ERESTARTNOINTR: