[LTP] [PATCH v1] openposix/fork/7-1.c: A bug fix

[Cyril Hrubis <chrubis@suse.cz>]

Hi!
> The function output interferes with the variable errno, that leads to
> the false positive result on limited test setups. The issue fixed.
> 
> Signed-off-by: Bogdan Lezhepekov <bogdan.lezhepekov@suse.com>
> ---
>  .../open_posix_testsuite/conformance/interfaces/fork/7-1.c    | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/testcases/open_posix_testsuite/conformance/interfaces/fork/7-1.c b/testcases/open_posix_testsuite/conformance/interfaces/fork/7-1.c
> index c3db90c00..4249d713d 100644
> --- a/testcases/open_posix_testsuite/conformance/interfaces/fork/7-1.c
> +++ b/testcases/open_posix_testsuite/conformance/interfaces/fork/7-1.c
> @@ -53,12 +53,14 @@ static void read_catalog(nl_catd cat, char *who)
>  {
>  	char *msg = NULL;
>  	int i, j;
> -	errno = 0;
>  
>  #if VERBOSE > 0
>  	output("Reading the message catalog from %s...\n", who);
>  #endif
>  
> +	/* the output function interferes with errno */ 
> +	errno = 0;
> +
>  	for (i = 1; i <= 2; i++) {
>  		for (j = 1; j <= 2; j++) {

This is obviously correct, but I would avoid adding the comment, it's
kind of obvious that anything that calls to libc may and will interfere
with errno.

Also the first line of the commit description could be a bit more
description, half of the commits pushed to LTP are bugfixes. So maybe
something as:

openposix/fork/7-1.c: Clear errno correctly

...

I can push the patch with these changes if it's okay with you.


-- 
Cyril Hrubis
chrubis@suse.cz