Re: [PATCH 3/3] p9auth: add p9auth driver

[David Howells]

Serge E. Hallyn <serue@xxxxxxxxxx> wrote:

> +	if (ret == 0)
> +		commit_creds(new);
> +	else
> +		abort_creds(new);
> +
> +	return ret;

If you make this:

	if (ret == 0)
		return commit_creds(new);
	abort_creds(new);
	return ret;

then gcc can tail-call commit_creds(), which is guaranteed to return 0.

David
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