linux-kernel - Re: [PATCH v3 3/5] selftests/ipc: change test to use ksft framework

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Date:	Fri, 03 Oct 2014 10:39:53 -0700
From:	Davidlohr Bueso <dave@...olabs.net>
To:	Shuah Khan <shuahkh@....samsung.com>
Cc:	akpm@...ux-foundation.org, gregkh@...uxfoundation.org,
	colin.king@...onical.com, luto@...capital.net,
	linux-api@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/5] selftests/ipc: change test to use ksft framework

On Fri, 2014-10-03 at 09:36 -0600, Shuah Khan wrote:
>  	msgque.key = ftok(argv[0], 822155650);
>  	if (msgque.key == -1) {
> -		printf("Can't make key\n");
> -		return -errno;
> +		printf("Can't make key: %d\n", -errno);

So printing a numeric value is quite useless when users actually run
into these errors -- which is why I like err() so much. How about using
strerror() instead?

Thanks,
Davidlohr

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