Re: [PATCH net-next v2 2/2] selftests: net: improve error handling in passive TFO test

[Markus Elfring]

…
> +++ b/tools/testing/selftests/net/tfo.c
> @@ -82,8 +82,10 @@ static void run_server(void)
…
>  	if (read(connfd, buf, 64) < 0)
> -		perror("read()");
> -	fprintf(outfile, "%d\n", opt);
> +		error(1, errno, "read()");
> +
> +	if (fprintf(outfile, "%d\n", opt) < 0)
> +		error(1, errno, "fprintf()");
>  
>  	fclose(outfile);
>  	close(connfd);
…

Why was error detection omitted for close() calls here so far?

https://pubs.opengroup.org/onlinepubs/9799919799/functions/fclose.html

Regards,
Markus