fix coverity issue

mariux64 · May 29, 2019 · 74f39bd · 74f39bd
1 parent 687c8cd
commit 74f39bd
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/rewrite.c b/rewrite.c
@@ -464,6 +464,8 @@ int dorewritemodvattr(struct tlv *vendortlv, struct modattr *modvattr) {
     for (offset = 4; offset < vendortlv->l; offset += ATTRLEN(vendortlv->v+offset)) {
         if (ATTRTYPE(vendortlv->v+offset) == modvattr->t) {
             tmpattr = maketlv(ATTRTYPE(vendortlv->v+offset), ATTRVALLEN(vendortlv->v+offset), ATTRVAL(vendortlv->v+offset));
+            if (!tmpattr)
+                return 0;
             if (dorewritemodattr(tmpattr, modvattr)) {
                 int size_diff = tmpattr->l - ATTRVALLEN(vendortlv->v+offset);
                 int rem_size = vendortlv->l - offset - ATTRLEN(vendortlv->v+offset);