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[PATCH 19/26] builtin/branch: fix leaking sorting options

From
Patrick Steinhardt <ps@pks.im>
Date
Nov 6, 2024, 15:11 UTC
Message-ID
<e0aa2c5bb258589bb2cac19c54fddbb70614a487.1730901926.git.ps@pks.im>
In-Reply-To
<cover.1730901926.git.ps@pks.im>

The sorting options are leaking, but given that they are marked with `UNLEAK()` the leak sanitizer doesn't complain.

Fix the leak by creating a common exit path and clearing the vector such that we can get rid of the `UNLEAK()` annotation entirely.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
 builtin/branch.c | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)
diff --git a/builtin/branch.c b/builtin/branch.c
index fd1611ebf55..05ba4cd7a64 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -722,6 +722,7 @@ int cmd_branch(int argc,
 	static struct ref_sorting *sorting;
 	struct string_list sorting_options = STRING_LIST_INIT_DUP;
 	struct ref_format format = REF_FORMAT_INIT;
+	int ret;
 
 	struct option options[] = {
 		OPT_GROUP(N_("Generic options")),
@@ -851,15 +852,15 @@ int cmd_branch(int argc,
 	if (list)
 		setup_auto_pager("branch", 1);
 
-	UNLEAK(sorting_options);
-
 	if (delete) {
 		if (!argc)
 			die(_("branch name required"));
-		return delete_branches(argc, argv, delete > 1, filter.kind, quiet);
+		ret = delete_branches(argc, argv, delete > 1, filter.kind, quiet);
+		goto out;
 	} else if (show_current) {
 		print_current_branch_name();
-		return 0;
+		ret = 0;
+		goto out;
 	} else if (list) {
 		/*  git branch --list also shows HEAD when it is detached */
 		if ((filter.kind & FILTER_REFS_BRANCHES) && filter.detached)
@@ -882,12 +883,13 @@ int cmd_branch(int argc,
 		ref_sorting_release(sorting);
 		ref_filter_clear(&filter);
 		ref_format_clear(&format);
-		return 0;
+
+		ret = 0;
+		goto out;
 	} else if (edit_description) {
 		const char *branch_name;
 		struct strbuf branch_ref = STRBUF_INIT;
 		struct strbuf buf = STRBUF_INIT;
-		int ret = 1; /* assume failure */
 
 		if (!argc) {
 			if (filter.detached)
@@ -901,18 +903,22 @@ int cmd_branch(int argc,
 		}
 
 		strbuf_addf(&branch_ref, "refs/heads/%s", branch_name);
-		if (!refs_ref_exists(get_main_ref_store(the_repository), branch_ref.buf))
+		if (!refs_ref_exists(get_main_ref_store(the_repository), branch_ref.buf)) {
 			error((!argc || branch_checked_out(branch_ref.buf))
 			      ? _("no commit on branch '%s' yet")
 			      : _("no branch named '%s'"),
 			      branch_name);
-		else if (!edit_branch_description(branch_name))
+			ret = 1;
+		} else if (!edit_branch_description(branch_name)) {
 			ret = 0; /* happy */
+		} else {
+			ret = 1;
+		}
 
 		strbuf_release(&branch_ref);
 		strbuf_release(&buf);
 
-		return ret;
+		goto out;
 	} else if (copy || rename) {
 		if (!argc)
 			die(_("branch name required"));
@@ -1000,12 +1006,17 @@ int cmd_branch(int argc,
 			create_branches_recursively(the_repository, branch_name,
 						    start_name, NULL, force,
 						    reflog, quiet, track, 0);
-			return 0;
+			ret = 0;
+			goto out;
 		}
 		create_branch(the_repository, branch_name, start_name, force, 0,
 			      reflog, quiet, track, 0);
 	} else
 		usage_with_options(builtin_branch_usage, options);
 
-	return 0;
+	ret = 0;
+
+out:
+	string_list_clear(&sorting_options, 0);
+	return ret;
 }
-- 
2.47.0.229.g8f8d6eee53.dirty
Previous: Rubén JustoNext: Rubén Justo
Message 27 of 39 in “Memory leak fixes (pt.10, final)”
  1. 00/26 Memory leak fixes (pt.10, final)Patrick Steinhardt, Nov 6, 2024
  2. 01/26 builtin/blame: fix leaking blame entries with `--incremental`Patrick Steinhardt, Nov 6, 2024
  3. 02/26 bisect: fix leaking good/bad terms when reading multipe timesPatrick Steinhardt, Nov 6, 2024
  4. 03/26 bisect: fix leaking string in `handle_bad_merge_base()`Patrick Steinhardt, Nov 6, 2024
  5. 04/26 bisect: fix leaking `current_bad_oid`Patrick Steinhardt, Nov 6, 2024
  6. 05/26 bisect: fix multiple leaks in `bisect_next_all()`Patrick Steinhardt, Nov 6, 2024
  7. 06/26 bisect: fix leaking commit list items in `check_merge_base()`Patrick Steinhardt, Nov 6, 2024
  8. 07/26 bisect: fix various cases where we leak commit list itemsPatrick Steinhardt, Nov 6, 2024
  9. 08/26 line-log: fix leak when rewriting commit parentsPatrick Steinhardt, Nov 6, 2024
  10. 09/26 strvec: introduce new `strvec_splice()` functionPatrick Steinhardt, Nov 6, 2024
  11. Rubén JustoNov 10, 2024
  12. Patrick SteinhardtNov 11, 2024
  13. 10/26 git: refactor alias handling to use a `struct strvec`Patrick Steinhardt, Nov 6, 2024
  14. Rubén JustoNov 10, 2024
  15. 11/26 git: refactor builtin handling to use a `struct strvec`Patrick Steinhardt, Nov 6, 2024
  16. 12/26 split-index: fix memory leak in `move_cache_to_base_index()`Patrick Steinhardt, Nov 6, 2024
  17. Rubén JustoNov 10, 2024
  18. 13/26 builtin/sparse-checkout: fix leaking sanitized patternsPatrick Steinhardt, Nov 6, 2024
  19. 14/26 help: refactor to not use globals for reading configPatrick Steinhardt, Nov 6, 2024
  20. 15/26 help: fix leaking `struct cmdnames`Patrick Steinhardt, Nov 6, 2024
  21. Rubén JustoNov 10, 2024
  22. Patrick SteinhardtNov 11, 2024
  23. 16/26 help: fix leaking return value from `help_unknown_cmd()`Patrick Steinhardt, Nov 6, 2024
  24. 17/26 builtin/help: fix leaks in `check_git_cmd()`Patrick Steinhardt, Nov 6, 2024
  25. 18/26 builtin/init-db: fix leaking directory pathsPatrick Steinhardt, Nov 6, 2024
  26. Rubén JustoNov 10, 2024
  27. 19/26 builtin/branch: fix leaking sorting optionsPatrick Steinhardt, Nov 6, 2024
  28. Rubén JustoNov 10, 2024
  29. 20/26 t/helper: fix leaking commit graph in "read-graph" subcommandPatrick Steinhardt, Nov 6, 2024
  30. 21/26 git-compat-util: drop `UNLEAK()` annotationPatrick Steinhardt, Nov 6, 2024
  31. Rubén JustoNov 10, 2024
  32. Patrick SteinhardtNov 11, 2024
  33. 22/26 t5601: work around leak sanitizer issuePatrick Steinhardt, Nov 6, 2024
  34. 23/26 t: mark some tests as leak freePatrick Steinhardt, Nov 6, 2024
  35. 24/26 t: remove unneeded !SANITIZE_LEAK prerequisitesPatrick Steinhardt, Nov 6, 2024
  36. 25/26 test-lib: unconditionally enable leak checkingPatrick Steinhardt, Nov 6, 2024
  37. 26/26 t: remove TEST_PASSES_SANITIZE_LEAK annotationsPatrick Steinhardt, Nov 6, 2024
  38. Rubén JustoNov 10, 2024
  39. Patrick SteinhardtNov 11, 2024

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