diff --git a/arch/powerpc/platforms/powernv/opal-rtc.c b/arch/powerpc/platforms/powernv/opal-rtc.c
index 1b149c92fca166429e59dc72b55bcbfe7393d930..f8868864f373ed5eecba333a5b1a2b83e38e0ec6 100644
--- a/arch/powerpc/platforms/powernv/opal-rtc.c
+++ b/arch/powerpc/platforms/powernv/opal-rtc.c
@@ -50,7 +50,7 @@ unsigned long __init opal_get_boot_time(void)
 		rc = opal_rtc_read(&__y_m_d, &__h_m_s_ms);
 		if (rc == OPAL_BUSY_EVENT)
 			opal_poll_events(NULL);
-		else
+		else if (rc == OPAL_BUSY)
 			mdelay(10);
 	}
 	if (rc != OPAL_SUCCESS)