Setting errno to a negative error value makes no sense.
Fixes: cb99a64029 ("libxc: arm: allow passing a device tree blob to the guest")
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
master commit: 438e96ab47
master date: 2022-04-22 20:39:34 +0100