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 4/8] rt-migrate-test.c: Suppress warning
Date: Fri, 25 Jul 2025 14:10:41 -0400 (EDT) [thread overview]
Message-ID: <524bcaff-d66b-c7c1-f8de-145b467d80de@redhat.com> (raw)
In-Reply-To: <20250712134213.58582-5-yphbchou0911@gmail.com>
On Sat, 12 Jul 2025, Cheng-Yang Chou wrote:
> Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
> ---
> src/rt-migrate-test/rt-migrate-test.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/src/rt-migrate-test/rt-migrate-test.c b/src/rt-migrate-test/rt-migrate-test.c
> index 8afe083..d7c0bf3 100644
> --- a/src/rt-migrate-test/rt-migrate-test.c
> +++ b/src/rt-migrate-test/rt-migrate-test.c
> @@ -61,6 +61,7 @@ static void ftrace_write(const char *fmt, ...)
> {
> va_list ap;
> int n;
> + int ret;
>
> if (mark_fd < 0)
> return;
> @@ -69,7 +70,9 @@ static void ftrace_write(const char *fmt, ...)
> n = vsnprintf(buff, BUFSIZ, fmt, ap);
> va_end(ap);
>
> - write(mark_fd, buff, n);
> + ret = write(mark_fd, buff, n);
> + if (ret < 0)
> + perror("ftrace_write failed");
> }
>
> #define nano2sec(nan) (nan / 1000000000ULL)
> --
> 2.48.1
>
>
>
Signed-off-by: John Kacur <jkacur@redhat.com>
next prev parent reply other threads:[~2025-07-25 18:10 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
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 [this message]
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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