[LTP] [PATCH] clnt_create: Determine the return value of clnt_create()

[Petr Vorel]

Hi Ma,

Thanks a lot, merged!

BTW I see some of the tests already had error control and they just printed 1
instead of rpc_createerr.cf_stat (rpc_clnt_call_dataint.c). Some other report
5 (e.g. rpc_clnt_call_performance.c). 

> Determine the return value of clnt_create() to avoid segmentation fault
> when executing clnt_destroy() when the return value of create is NULL.

...
> +++ b/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_createdestroy_clnt_create/rpc_clnt_create_stress.c
> @@ -59,6 +59,12 @@ int main(int argn, char *argc[])

>  		if (clnt != NULL)
>  			nbOk++;
> +		else {
> +			clnt_pcreateerror("err");
> +			printf("%d\n", rpc_createerr.cf_stat);
> +
> +			return 1;
> +		}
>  	}

I reversed the condition of the check (more readable code):

		if (clnt == NULL) {
			clnt_pcreateerror("err");
			printf("%d\n", rpc_createerr.cf_stat);

			return 1;
		}

		nbOk++;

The testsuite contains a lot of duplicity and useless code. It could be
rewritten to use simple macro to remove most of the redundancy.

Kind regards,
Petr