mailmap.c: fix a memory leak in free_mailap_{info,entry}()

In the free_mailmap_entry() code added in 0925ce4d49 (Add map_user() and clear_mailmap() to mailmap, 2009-02-08) the intent was clearly to clear the "me" structure, but while we freed parts of the mailmap_entry structure, we didn't free the structure itself. The same goes for the "mailmap_info" structure. This brings the number of SANITIZE=leak failures in t4203-mailmap.sh down from 50 to 49. Not really progress as far as the number of failures is concerned, but as far as I can tell this fixes all leaks in mailmap.c itself. There's still users of it such as builtin/log.c that call read_mailmap() without a clear_mailmap(), but that's on them. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ævar Arnfjörð Bjarmason committed Aug 31, 2021 at 15:42 UTC ccdd5d1eb14a6735c34428e856c0de33f1055520
1 file changed +2
mailmap.c
+2
@@ -36,6 +36,7 @@ static void free_mailmap_info(void *p, const char *s)
36 s, debug_str(mi->name), debug_str(mi->email));
37 free(mi->name);
38 free(mi->email);
39 + free(mi);
40 }
41
42 static void free_mailmap_entry(void *p, const char *s)
@@ -51,6 +52,7 @@ static void free_mailmap_entry(void *p, const char *s)
52
53 me->namemap.strdup_strings = 1;
54 string_list_clear_func(&me->namemap, free_mailmap_info);
55 + free(me);
56 }
57
58 /*