Johannes Schindelin <johannes.schindelin@xxxxxx> writes:
> When the `name_rev()` function is asked to dereference the tip name, it
> allocates memory. But when it turns out that another tip already
> described the commit better than the current one, we forgot to release
> the memory.
Very well explained.
>
> Pointed out by Coverity.
>
> Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
> ---
> builtin/name-rev.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/builtin/name-rev.c b/builtin/name-rev.c
> index 92a5d8a5d26..a4ce73fb1e9 100644
> --- a/builtin/name-rev.c
> +++ b/builtin/name-rev.c
> @@ -28,6 +28,7 @@ static void name_rev(struct commit *commit,
> struct rev_name *name = (struct rev_name *)commit->util;
> struct commit_list *parents;
> int parent_number = 1;
> + char *p = NULL;
>
> parse_commit(commit);
>
> @@ -35,7 +36,7 @@ static void name_rev(struct commit *commit,
> return;
>
> if (deref) {
> - tip_name = xstrfmt("%s^0", tip_name);
> + tip_name = p = xstrfmt("%s^0", tip_name);
>
> if (generation)
> die("generation: %d, but deref?", generation);
> @@ -53,8 +54,10 @@ static void name_rev(struct commit *commit,
> name->taggerdate = taggerdate;
> name->generation = generation;
> name->distance = distance;
> - } else
> + } else {
> + free(p);
> return;
> + }
>
> for (parents = commit->parents;
> parents;