From 235ac40772e259adfd978850b56192dca9791bb8 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 24 Apr 2005 14:31:57 -0700 Subject: [PATCH] Don't add references to objects we couldn't find. That would SIGSEGV. --- commit.c | 9 ++++++--- tree.c | 3 ++- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/commit.c b/commit.c index c6fdfd49..9fbcbd33 100644 --- a/commit.c +++ b/commit.c @@ -59,13 +59,16 @@ int parse_commit(struct commit *item) sha1_to_hex(item->object.sha1)); get_sha1_hex(bufptr + 5, parent); item->tree = lookup_tree(parent); - add_ref(&item->object, &item->tree->object); + if (item->tree) + add_ref(&item->object, &item->tree->object); bufptr += 46; /* "tree " + "hex sha1" + "\n" */ while (!memcmp(bufptr, "parent ", 7) && !get_sha1_hex(bufptr + 7, parent)) { struct commit *new_parent = lookup_commit(parent); - commit_list_insert(new_parent, &item->parents); - add_ref(&item->object, &new_parent->object); + if (new_parent) { + commit_list_insert(new_parent, &item->parents); + add_ref(&item->object, &new_parent->object); + } bufptr += 48; } item->date = parse_commit_date(bufptr); diff --git a/tree.c b/tree.c index 3537c115..26b79270 100644 --- a/tree.c +++ b/tree.c @@ -137,7 +137,8 @@ int parse_tree(struct tree *item) entry->item.blob = lookup_blob(file_sha1); obj = &entry->item.blob->object; } - add_ref(&item->object, obj); + if (obj) + add_ref(&item->object, obj); *list_p = entry; list_p = &entry->next; -- 2.11.0