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    SubjectRe: [PATCH 3/3] p9auth: add p9auth driver
    Date
    Serge E. Hallyn <serue@us.ibm.com> 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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