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authorJohannes Schindelin <johannes.schindelin@gmx.de>2017-05-04 15:59:06 +0200
committerJunio C Hamano <gitster@pobox.com>2017-05-08 12:18:20 +0900
commit5308224633cf138f436357b2a8a87a546373af72 (patch)
tree38df10b117d95a5a1f88df10fd8128d8da67450e
parent3dc7ea91dab9959b6bec82c05df18d6d1bb70619 (diff)
downloadgit-5308224633cf138f436357b2a8a87a546373af72.tar.gz
name-rev: avoid leaking memory in the `deref` case
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. Pointed out by Coverity. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/name-rev.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/builtin/name-rev.c b/builtin/name-rev.c
index 92a5d8a5d2..e7a3fe7ee7 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 *to_free = 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 = to_free = xstrfmt("%s^0", tip_name);
if (generation)
die("generation: %d, but deref?", generation);
@@ -53,8 +54,10 @@ copy_data:
name->taggerdate = taggerdate;
name->generation = generation;
name->distance = distance;
- } else
+ } else {
+ free(to_free);
return;
+ }
for (parents = commit->parents;
parents;