Re: [PATCH 2/7] tests/unit/socket-helpers: Don't close(-1)

[Thomas Huth <thuth@redhat.com>]

On 12/03/2024 19.38, Peter Maydell wrote:
> In socket_check_afunix_support() we call socket(PF_UNIX, SOCK_STREAM, 0)
> to see if it works, but we call close() on the result whether it
> worked or not. Only close the fd if the socket() call succeeded.
> Spotted by Coverity.
> 
> Resolves: Coverity CID 1497481
> 
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
> ---
>   tests/unit/socket-helpers.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/unit/socket-helpers.c b/tests/unit/socket-helpers.c
> index 6de27baee2e..f3439cc4e52 100644
> --- a/tests/unit/socket-helpers.c
> +++ b/tests/unit/socket-helpers.c
> @@ -160,7 +160,6 @@ void socket_check_afunix_support(bool *has_afunix)
>       int fd;
>   
>       fd = socket(PF_UNIX, SOCK_STREAM, 0);
> -    close(fd);
>   
>   #ifdef _WIN32
>       *has_afunix = (fd != (int)INVALID_SOCKET);
> @@ -168,5 +167,8 @@ void socket_check_afunix_support(bool *has_afunix)
>       *has_afunix = (fd >= 0);
>   #endif
>   
> +    if (*has_afunix) {
> +        close(fd);
> +    }
>       return;
>   }

Reviewed-by: Thomas Huth <thuth@redhat.com>