diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 2097f2b3cba8..f48446635c89 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -494,7 +494,7 @@ unsigned int rtas_busy_delay(int status)
 
 	might_sleep();
 	ms = rtas_busy_delay_time(status);
-	if (ms)
+	if (ms && need_resched())
 		msleep(ms);
 
 	return ms;