From: John Kacur <jkacur@redhat.com>
To: Cheng-Yang Chou <yphbchou0911@gmail.com>
Cc: williams@redhat.com, linux-rt-users@vger.kernel.org,
jserv@ccns.ncku.edu.tw
Subject: Re: [PATCH 2/8] pmqtest.c: Suppress warning
Date: Fri, 25 Jul 2025 14:07:11 -0400 (EDT) [thread overview]
Message-ID: <35888167-ac6b-e8a9-c884-17ffc7ae109b@redhat.com> (raw)
In-Reply-To: <20250712134213.58582-3-yphbchou0911@gmail.com>
On Sat, 12 Jul 2025, Cheng-Yang Chou wrote:
> Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
> ---
> src/pmqtest/pmqtest.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/src/pmqtest/pmqtest.c b/src/pmqtest/pmqtest.c
> index 04e36a1..eb20baa 100644
> --- a/src/pmqtest/pmqtest.c
> +++ b/src/pmqtest/pmqtest.c
> @@ -75,6 +75,7 @@ void *pmqthread(void *param)
> int policy = SCHED_FIFO;
> struct sched_param schedp;
> struct timespec ts;
> + int ret;
>
> memset(&schedp, 0, sizeof(schedp));
> schedp.sched_priority = par->priority;
> @@ -189,7 +190,10 @@ void *pmqthread(void *param)
> int tracing_enabled =
> open(tracing_enabled_file, O_WRONLY);
> if (tracing_enabled >= 0) {
> - write(tracing_enabled, "0", 1);
> + ret = write(tracing_enabled, "0", 1);
> + if (ret < 0)
> + fatal("Could not write to %s: %s\n",
> + tracing_enabled_file, strerror(errno));
> close(tracing_enabled);
> } else
> fatal("Could not access %s\n", tracing_enabled_file);
> --
> 2.48.1
>
>
>
Signed-off-by: John Kacur <jkacur@redhat.com>
next prev parent reply other threads:[~2025-07-25 18:07 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-12 13:42 [PATCH 0/8] Fix -Wunused-result warnings by checking return values Cheng-Yang Chou
2025-07-12 13:42 ` [PATCH 1/8] rt-utils.c: Suppress warning Cheng-Yang Chou
2025-07-25 18:04 ` John Kacur
2025-07-12 13:42 ` [PATCH 2/8] pmqtest.c: " Cheng-Yang Chou
2025-07-25 18:07 ` John Kacur [this message]
2025-07-12 13:42 ` [PATCH 3/8] ptsematest.c: " Cheng-Yang Chou
2025-07-25 18:09 ` John Kacur
2025-07-12 13:42 ` [PATCH 4/8] rt-migrate-test.c: " Cheng-Yang Chou
2025-07-25 18:10 ` John Kacur
2025-07-12 13:42 ` [PATCH 5/8] cyclicdeadline.c: " Cheng-Yang Chou
2025-07-12 13:42 ` [PATCH 6/8] deadline_test.c: " Cheng-Yang Chou
2025-07-12 13:42 ` [PATCH 7/8] sigwaittest.c: " Cheng-Yang Chou
2025-07-12 13:42 ` [PATCH 8/8] svsematest.c: " Cheng-Yang Chou
2025-07-25 18:16 ` [PATCH 0/8] Fix -Wunused-result warnings by checking return values John Kacur
2025-07-25 18:20 ` Cheng-Yang Chou
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