xen-front-pgdir-shbuf: don't record wrong grant handle upon error
In order for subsequent unmapping to not mistakenly unmap handle 0, record a perceived always-invalid one instead. Signed-off-by:Jan Beulich <jbeulich@suse.com> Reviewed-by:
Juergen Gross <jgross@suse.com> Reviewed-by:
Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Link: https://lore.kernel.org/r/82414b0f-1b63-5509-7c1d-5bcc8239a3de@suse.com Signed-off-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com>
parent
43135df0
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