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H A Dtrace-events92e667f6 Tue May 02 09:37:22 CDT 2023 Jason Andryuk <jandryuk@gmail.com> 9pfs/xen: Fix segfault on shutdown

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>
H A Dxen-9p-backend.c92e667f6 Tue May 02 09:37:22 CDT 2023 Jason Andryuk <jandryuk@gmail.com> 9pfs/xen: Fix segfault on shutdown

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>