From: Patrick Steinhardt <ps@pks.im>
To: Johannes Schindelin via GitGitGadget <gitgitgadget@gmail.com>
Cc: git@vger.kernel.org, Johannes Schindelin <johannes.schindelin@gmx.de>
Subject: Re: [PATCH 11/11] bisect: handle dup() failure when redirecting stdout
Date: Wed, 15 Jul 2026 08:58:38 +0200 [thread overview]
Message-ID: <alcvnm0xiOv5W0w_@pks.im> (raw)
In-Reply-To: <2da452e39cbe1bd53da9d76fa7f7615c1a453634.1784069325.git.gitgitgadget@gmail.com>
On Tue, Jul 14, 2026 at 10:48:44PM +0000, Johannes Schindelin via GitGitGadget wrote:
> diff --git a/builtin/bisect.c b/builtin/bisect.c
> index 15a2a30f89..801daf8c78 100644
> --- a/builtin/bisect.c
> +++ b/builtin/bisect.c
> @@ -1308,6 +1308,11 @@ static int bisect_run(struct bisect_terms *terms, int argc, const char **argv)
>
> fflush(stdout);
> saved_stdout = dup(1);
> + if (saved_stdout < 0) {
> + res = error_errno(_("could not duplicate stdout"));
> + close(temporary_stdout_fd);
> + break;
> + }
> dup2(temporary_stdout_fd, 1);
Shouldn't we also verify the return value of `dup2()` while at it?
Patrick
prev parent reply other threads:[~2026-07-15 6:58 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-14 22:48 [PATCH 00/11] coverity: fix unchecked returns Johannes Schindelin via GitGitGadget
2026-07-14 22:48 ` [PATCH 01/11] http: die on curl_easy_duphandle failure in get_active_slot Johannes Schindelin via GitGitGadget
2026-07-14 22:48 ` [PATCH 02/11] config: propagate launch_editor() failure in show_editor() Johannes Schindelin via GitGitGadget
2026-07-15 6:58 ` Patrick Steinhardt
2026-07-14 22:48 ` [PATCH 03/11] reftable/block: check deflateInit() return value Johannes Schindelin via GitGitGadget
2026-07-14 22:48 ` [PATCH 04/11] reftable tests: check reftable_table_init_ref_iterator() return Johannes Schindelin via GitGitGadget
2026-07-14 22:48 ` [PATCH 05/11] last-modified: handle repo_parse_commit() failures Johannes Schindelin via GitGitGadget
2026-07-15 1:15 ` Junio C Hamano
2026-07-14 22:48 ` [PATCH 06/11] compat/pread: check initial lseek for errors Johannes Schindelin via GitGitGadget
2026-07-15 6:58 ` Patrick Steinhardt
2026-07-14 22:48 ` [PATCH 07/11] transport-helper: check dup() return in get_exporter Johannes Schindelin via GitGitGadget
2026-07-15 6:58 ` Patrick Steinhardt
2026-07-14 22:48 ` [PATCH 08/11] transport-helper: warn when export-marks file cannot be finalized Johannes Schindelin via GitGitGadget
2026-07-14 22:48 ` [PATCH 09/11] bisect: check strbuf_getline_lf return when reading terms Johannes Schindelin via GitGitGadget
2026-07-15 1:17 ` Junio C Hamano
2026-07-14 22:48 ` [PATCH 10/11] bisect: check get_terms return at all call sites Johannes Schindelin via GitGitGadget
2026-07-15 6:58 ` Patrick Steinhardt
2026-07-14 22:48 ` [PATCH 11/11] bisect: handle dup() failure when redirecting stdout Johannes Schindelin via GitGitGadget
2026-07-15 6:58 ` Patrick Steinhardt [this message]
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