diff --git a/drivers/md/md.c b/drivers/md/md.c
index 32b2ad88a2f95b1d285bd8f510ef47bcf397044e..75a3f483522dab18ac7d0b1529d818ea958088a8 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2460,7 +2460,6 @@ resync_start_show(mddev_t *mddev, char *page)
 static ssize_t
 resync_start_store(mddev_t *mddev, const char *buf, size_t len)
 {
-	/* can only set chunk_size if array is not yet active */
 	char *e;
 	unsigned long long n = simple_strtoull(buf, &e, 10);