From: "Mi, Dapeng" <dapeng1.mi@linux.intel.com>
To: Miaoqian Lin <linmq006@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
"Liang, Kan" <kan.liang@linux.intel.com>,
Stephen Brennan <stephen.s.brennan@oracle.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Subject: Re: [PATCH] perf lzma: Fix return value in lzma_is_compressed()
Date: Sat, 11 Oct 2025 11:47:35 +0800 [thread overview]
Message-ID: <479d0898-db4a-4112-a97c-26cfd7ab04b1@linux.intel.com> (raw)
In-Reply-To: <20250828105048.55247-1-linmq006@gmail.com>
On 8/28/2025 6:50 PM, Miaoqian Lin wrote:
> lzma_is_compressed() returns -1 on error but is declared as bool.
> And -1 gets converted to true, which could be misleading.
> Return false instead to match the declared type.
>
> Fixes: 4b57fd44b61b ("perf tools: Add lzma_is_compressed function")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
> ---
> tools/perf/util/lzma.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/util/lzma.c b/tools/perf/util/lzma.c
> index bbcd2ffcf4bd..c355757ed391 100644
> --- a/tools/perf/util/lzma.c
> +++ b/tools/perf/util/lzma.c
> @@ -120,7 +120,7 @@ bool lzma_is_compressed(const char *input)
> ssize_t rc;
>
> if (fd < 0)
> - return -1;
> + return false;
>
> rc = read(fd, buf, sizeof(buf));
> close(fd);
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
prev parent reply other threads:[~2025-10-11 3:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-28 10:50 Miaoqian Lin
2025-10-11 3:47 ` Mi, Dapeng [this message]
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