bisect: fix multiple leaks in bisect_next_all()

There are multiple leaks in `bisect_next_all()`. For one we don't free
the `tried` commit list. Second, one of the branches uses a direct
return instead of jumping to the cleanup code.

Fix these by freeing the commit list and converting the return to a
goto.

Signed-off-by: Patrick Steinhardt <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: pks-t

bisect.c

@@ -1031,7 +1031,7 @@ enum bisect_error bisect_next_all(struct repository *r, const char *prefix)
 {
 	struct strvec rev_argv = STRVEC_INIT;
 	struct rev_info revs = REV_INFO_INIT;
-	struct commit_list *tried;
+	struct commit_list *tried = NULL;
 	int reaches = 0, all = 0, nr, steps;
 	enum bisect_error res = BISECT_OK;
 	struct object_id *bisect_rev;
@@ -1098,7 +1098,7 @@ enum bisect_error bisect_next_all(struct repository *r, const char *prefix)
 	if (oideq(bisect_rev, current_bad_oid)) {
 		res = error_if_skipped_commits(tried, current_bad_oid);
 		if (res)
-			return res;
+			goto cleanup;
 		printf("%s is the first %s commit\n", oid_to_hex(bisect_rev),
 			term_bad);
 
@@ -1132,6 +1132,7 @@ enum bisect_error bisect_next_all(struct repository *r, const char *prefix)
 
 	res = bisect_checkout(bisect_rev, no_checkout);
 cleanup:
+	free_commit_list(tried);
 	release_revisions(&revs);
 	strvec_clear(&rev_argv);
 	return res;