dm zoned: fix a few typos

Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
diff --git a/drivers/md/dm-zoned-reclaim.c b/drivers/md/dm-zoned-reclaim.c
index 8297b75..d240d7c 100644
--- a/drivers/md/dm-zoned-reclaim.c
+++ b/drivers/md/dm-zoned-reclaim.c
@@ -438,7 +438,7 @@ static bool dmz_should_reclaim(struct dmz_reclaim *zrc)
 		return false;
 
 	/*
-	 * If the percentage of unmappped random zones is low,
+	 * If the percentage of unmapped random zones is low,
 	 * reclaim even if the target is busy.
 	 */
 	return p_unmap_rnd <= DMZ_RECLAIM_LOW_UNMAP_RND;