[review] core: add tadb

Signed-off-by: Jens Wiklander <[email protected]>

core/tee/tadb.c

@@ -491,6 +491,13 @@ static TEE_Result find_ent(struct tee_tadb_dir *db, const TEE_UUID *uuid,
 	TEE_Result res;
 	size_t idx;
 
+	/*
+	 * Search for the provided uuid, if it's found return the index it
+	 * has together with TEE_SUCCESS.
+	 *
+	 * If the uuid can't be found return the number indexes together
+	 * with TEE_ERROR_ITEM_NOT_FOUND.
+	 */
 	for (idx = 0;; idx++) {
 		struct tadb_entry entry;
 
@@ -719,7 +726,7 @@ TEE_Result tee_tadb_ta_read(struct tee_tadb_ta_read *ta, void *buf, size_t *len)
 			return res;
 	} else {
 		size_t num_bytes = 0;
-		size_t b_size = MIN(SIZE_4K, l - num_bytes);
+		size_t b_size = MIN(SIZE_4K, l);
 		uint8_t *b = malloc(b_size);
 
 		if (!b)