Konrad Rzeszutek Wilk writes ("Re: [PATCH v1 3/3] xen-livepatch: If hypervisor
is not compiled with Livepatching"):
> On Thu, Sep 22, 2016 at 08:25:33AM +0100, Ross Lagerwall wrote:
> > You should save errno since you have an fprintf before you check it.
>
> I am missing something.
>
> Why would fprintf mess up 'errno' ?
Any libc function is entitled to set errno, if it fails.
Ian.
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