diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c
index ecb002c5db83b311a89055fa3b35c6cd3e94e08d..35f699ebb662189fd574ca23f43c089cf7b92a17 100644
--- a/arch/powerpc/platforms/powernv/idle.c
+++ b/arch/powerpc/platforms/powernv/idle.c
@@ -817,7 +817,7 @@ static int pnv_parse_cpuidle_dt(void)
 		goto out;
 	}
 	for (i = 0; i < nr_idle_states; i++)
-		strncpy(pnv_idle_states[i].name, temp_string[i],
+		strlcpy(pnv_idle_states[i].name, temp_string[i],
 			PNV_IDLE_NAME_LEN);
 	nr_pnv_idle_states = nr_idle_states;
 	rc = 0;