Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx> writes:
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
> ---
> list-objects.c | 10 ++++++----
> 1 files changed, 6 insertions(+), 4 deletions(-)
Please explain why this is needed?
I can see that process_blob() is called from process_tree() which passes
the return value from lookup_blob(entry.sha1) directly without looking at
it. lookup_blob() can issue an error message and return NULL if there is
a SHA-1 collision with an object that is not a blob.
> diff --git a/list-objects.c b/list-objects.c
> index 3dd4a96..34044d9 100644
> --- a/list-objects.c
> +++ b/list-objects.c
> @@ -15,12 +15,13 @@ static void process_blob(struct rev_info *revs,
> const char *name,
> void *cb_data)
> {
> - struct object *obj = &blob->object;
> + struct object *obj;
>
> if (!revs->blob_objects)
> return;
> - if (!obj)
> + if (!blob)
> die("bad blob object");
> + obj = &blob->object;
> if (obj->flags & (UNINTERESTING | SEEN))
> return;
> obj->flags |= SEEN;
> @@ -67,7 +68,7 @@ static void process_tree(struct rev_info *revs,
> const char *name,
> void *cb_data)
> {
> - struct object *obj = &tree->object;
> + struct object *obj;
> struct tree_desc desc;
> struct name_entry entry;
> struct name_path me;
> @@ -77,8 +78,9 @@ static void process_tree(struct rev_info *revs,
>
> if (!revs->tree_objects)
> return;
> - if (!obj)
> + if (!tree)
> die("bad tree object");
> + obj = &tree->object;
> if (obj->flags & (UNINTERESTING | SEEN))
> return;
> if (parse_tree(tree) < 0)
--
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