update-index: fix segfault with missing --cacheinfo argument

diff --git a/commit.c b/commit.c
index a2639473833a6d41d8aabb73444cc5ef37b2ea23..0f28902bc351fef9d621cfe290f887921ec779c4 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -141,12 +141,8 @@ int register_commit_graft(struct commit_graft *graft, int ignore_dups)
                return 1;
        }
        pos = -pos - 1;
-       if (commit_graft_alloc <= ++commit_graft_nr) {
-               commit_graft_alloc = alloc_nr(commit_graft_alloc);
-               commit_graft = xrealloc(commit_graft,
-                                       sizeof(*commit_graft) *
-                                       commit_graft_alloc);
-       }
+       ALLOC_GROW(commit_graft, commit_graft_nr + 1, commit_graft_alloc);
+       commit_graft_nr++;
        if (pos < commit_graft_nr)
                memmove(commit_graft + pos + 1,
                        commit_graft + pos,