diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 258000417724..4055359fd54f 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -48,7 +48,7 @@ void ret_from_fork(void) asm("ret_from_fork");
 
 void __ret_from_fork(struct task_struct *prev, struct pt_regs *regs)
 {
-	void (*func)(void *arg);
+	int (*func)(void *arg);
 
 	schedule_tail(prev);