xen: fix usage of ENODATA
ENODATA doesn't exist on FreeBSD, so ENODATA errors returned by the hypervisor are translated to ENOENT. Also, the error code is returned in errno if the call returns -1, so compare the error code with the value in errno instead of the value returned by the function. Signed-off-by: NRoger Pau Monné <roger.pau@citrix.com> Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: xen-devel@lists.xenproject.org Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Anthony Perard <anthony.perard@citrix.com>
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