xen_9pfs_free can't use gnttabdev since it is already closed and NULL-ed
out when free is called. Do the teardown in _disconnect(). This
matches the setup done in _connect().
trace-events are also added for the XenDevOps functions.
Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Message-Id: <20230502143722.15613-1-jandryuk@gmail.com>
[C.S.: - Remove redundant return in xen_9pfs_free().
- Add comment to trace-events. ]
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
(cherry picked from commit 92e667f6fd)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: minor context conflict in hw/9pfs/xen-9p-backend.c)
de6596aa9d