Re: [PATCH] perf tools: Fix bool return value in gzip_is_compressed()

Mi, Dapeng
2025-10-11T03:49:02Z

On 8/28/2025 6:46 PM, Miaoqian Lin wrote:
> gzip_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: 88c74dc76a30 ("perf tools: Add gzip_is_compressed function")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
> ---
> tools/perf/util/zlib.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/util/zlib.c b/tools/perf/util/zlib.c
> index 78d2297c1b67..1f7c06523059 100644
> --- a/tools/perf/util/zlib.c
> +++ b/tools/perf/util/zlib.c
> @@ -88,7 +88,7 @@ bool gzip_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>