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author | Lénaïc Huard <lenaic@lhuard.fr> | 2021-05-10 22:59:09 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2021-05-12 01:00:45 +0300 |
commit | c5d0b12a4c8aaf4a1d317a2fa589d30255f5bc80 (patch) | |
tree | 6ec17357a4505ce7accc72708f14ac7954020a0e /builtin | |
parent | 49f38e2de47a401fc2b0f4cce38e9f07fb63df48 (diff) |
maintenance: fix two memory leaks
Fixes two memory leaks when running `git maintenance start` or `git
maintenance stop` in `update_background_schedule`:
$ valgrind --leak-check=full ~/git/bin/git maintenance start
==76584== Memcheck, a memory error detector
==76584== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==76584== Using Valgrind-3.16.1 and LibVEX; rerun with -h for copyright info
==76584== Command: /home/lenaic/git/bin/git maintenance start
==76584==
==76584==
==76584== HEAP SUMMARY:
==76584== in use at exit: 34,880 bytes in 252 blocks
==76584== total heap usage: 820 allocs, 568 frees, 146,414 bytes allocated
==76584==
==76584== 65 bytes in 1 blocks are definitely lost in loss record 17 of 39
==76584== at 0x483E6AF: malloc (vg_replace_malloc.c:306)
==76584== by 0x3DC39C: xrealloc (wrapper.c:126)
==76584== by 0x3992CC: strbuf_grow (strbuf.c:98)
==76584== by 0x39A473: strbuf_vaddf (strbuf.c:392)
==76584== by 0x39BC54: xstrvfmt (strbuf.c:979)
==76584== by 0x39BD2C: xstrfmt (strbuf.c:989)
==76584== by 0x18451B: update_background_schedule (gc.c:1977)
==76584== by 0x1846F6: maintenance_start (gc.c:2011)
==76584== by 0x1847B4: cmd_maintenance (gc.c:2030)
==76584== by 0x127A2E: run_builtin (git.c:453)
==76584== by 0x127E81: handle_builtin (git.c:704)
==76584== by 0x128142: run_argv (git.c:771)
==76584==
==76584== 240 bytes in 1 blocks are definitely lost in loss record 29 of 39
==76584== at 0x4840D7B: realloc (vg_replace_malloc.c:834)
==76584== by 0x491CE5D: getdelim (in /usr/lib/libc-2.33.so)
==76584== by 0x39ADD7: strbuf_getwholeline (strbuf.c:635)
==76584== by 0x39AF31: strbuf_getdelim (strbuf.c:706)
==76584== by 0x39B064: strbuf_getline_lf (strbuf.c:727)
==76584== by 0x184273: crontab_update_schedule (gc.c:1919)
==76584== by 0x184678: update_background_schedule (gc.c:1997)
==76584== by 0x1846F6: maintenance_start (gc.c:2011)
==76584== by 0x1847B4: cmd_maintenance (gc.c:2030)
==76584== by 0x127A2E: run_builtin (git.c:453)
==76584== by 0x127E81: handle_builtin (git.c:704)
==76584== by 0x128142: run_argv (git.c:771)
==76584==
==76584== LEAK SUMMARY:
==76584== definitely lost: 305 bytes in 2 blocks
==76584== indirectly lost: 0 bytes in 0 blocks
==76584== possibly lost: 0 bytes in 0 blocks
==76584== still reachable: 34,575 bytes in 250 blocks
==76584== suppressed: 0 bytes in 0 blocks
==76584== Reachable blocks (those to which a pointer was found) are not shown.
==76584== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==76584==
==76584== For lists of detected and suppressed errors, rerun with: -s
==76584== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)
Signed-off-by: Lénaïc Huard <lenaic@lhuard.fr>
Acked-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin')
-rw-r--r-- | builtin/gc.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/builtin/gc.c b/builtin/gc.c index 98a803196b..f05d2f0a1a 100644 --- a/builtin/gc.c +++ b/builtin/gc.c @@ -1909,6 +1909,7 @@ static int crontab_update_schedule(int run_maintenance, int fd, const char *cmd) else if (!in_old_region) fprintf(cron_in, "%s\n", line.buf); } + strbuf_release(&line); if (run_maintenance) { struct strbuf line_format = STRBUF_INIT; @@ -1971,8 +1972,10 @@ static int update_background_schedule(int enable) cmd = sep + 1; } - if (hold_lock_file_for_update(&lk, lock_path, LOCK_NO_DEREF) < 0) - return error(_("another process is scheduling background maintenance")); + if (hold_lock_file_for_update(&lk, lock_path, LOCK_NO_DEREF) < 0) { + result = error(_("another process is scheduling background maintenance")); + goto cleanup; + } if (!strcmp(scheduler, "launchctl")) result = launchctl_update_schedule(enable, get_lock_file_fd(&lk), cmd); @@ -1984,6 +1987,9 @@ static int update_background_schedule(int enable) die("unknown background scheduler: %s", scheduler); rollback_lock_file(&lk); + +cleanup: + free(lock_path); free(testing); return result; } |