Fixing call_get_merkleized_map_value() return value checking (2)

Author: iartemov-ledger

src/handler/lib/policy.c

@@ -439,7 +439,7 @@ __attribute__((noinline, warn_unused_result)) int get_extended_pubkey_from_clien
                                                         key_index,
                                                         (uint8_t *) key_info_str,
                                                         sizeof(key_info_str));
-        if (key_info_len == -1) {
+        if (key_info_len < 0) {
             return -1;
         }
 
@@ -1799,7 +1799,7 @@ static int get_pubkey_from_merkle_tree(dispatcher_context_t *dispatcher_context,
                                                     index,
                                                     (uint8_t *) key_info_str,
                                                     sizeof(key_info_str));
-    if (key_info_len == -1) {
+    if (key_info_len < 0) {
         return WITH_ERROR(-1, "Failed to retrieve key info");
     }
 

src/handler/sign_psbt.c

@@ -278,7 +278,7 @@ init_global_state(dispatcher_context_t *dc, sign_psbt_state_t *st) {
                                                    1,
                                                    raw_result,
                                                    sizeof(raw_result));
-        if (result_len == -1) {
+        if (result_len < 0) {
             st->locktime = 0;
         } else if (result_len != 4) {
             SEND_SW(dc, SW_INCORRECT_DATA);