SonarQube findings resolution

Null pointers should not be dereferenced.

Issue link: https://sonarcloud.io/project/issues?open=AZewUHZMhZlKgxRm5XOd&id=nrfconnect_sdk-mcuboot

Ref: NCSDK-35334

Signed-off-by: Adam Szczygieł <[email protected]>

Author: adsz-nordic

boot/bootutil/src/tlv.c

@@ -135,14 +135,14 @@ bootutil_tlv_iter_next(struct image_tlv_iter *it, uint32_t *off, uint16_t *len,
         }
 
         if (it->type == IMAGE_TLV_ANY || tlv.it_type == it->type) {
-            if (type != NULL) {
-                *type = tlv.it_type;
-            }
             *off = it->tlv_off + sizeof(tlv);
             *len = tlv.it_len;
             it->tlv_off += sizeof(tlv) + tlv.it_len;
-            BOOT_LOG_DBG("bootutil_tlv_iter_next: TLV %d found at %d (size %d)",
-                         *type, *off, *len);
+            if (type != NULL) {
+                *type = tlv.it_type;
+                BOOT_LOG_DBG("bootutil_tlv_iter_next: TLV %d found at %d (size %d)",
+                            *type, *off, *len);
+            }
             return 0;
         }