diff --git a/block/bio.c b/block/bio.c
index 68972e3d3f5c..4c18a68913de 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1214,8 +1214,11 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
 			}
 		}
 
-		if (bio_add_pc_page(q, bio, page, bytes, offset) < bytes)
+		if (bio_add_pc_page(q, bio, page, bytes, offset) < bytes) {
+			if (!map_data)
+				__free_page(page);
 			break;
+		}
 
 		len -= bytes;
 		offset = 0;