diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index a46124ecafc78b7e08f487834bcccc38ad663072..e5037e2aadd3078b7c6ca82b1b3fcd9c3cfbcfd3 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -4399,6 +4399,7 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr,
 		 * on all the target devices.
 		 */
 		// FIXME
+		mempool_free(r10_bio, conf->r10buf_pool);
 		set_bit(MD_RECOVERY_INTR, &mddev->recovery);
 		return sectors_done;
 	}