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| author | Jason Gunthorpe <jgg@nvidia.com> | 2021-04-06 21:40:30 +0200 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2021-04-07 23:39:17 +0200 |
| commit | 9a302449a58d45d0ef2aab686f64b35919bc604c (patch) | |
| tree | f7716b02c40a3a9e58634786baee6ec67f6531dc /mm | |
| parent | vfio/mdev: Expose mdev_get/put_parent to mdev_private.h (diff) | |
| download | linux-9a302449a58d45d0ef2aab686f64b35919bc604c.tar.xz linux-9a302449a58d45d0ef2aab686f64b35919bc604c.zip | |
vfio/mdev: Add missing reference counting to mdev_type
struct mdev_type holds a pointer to the kref'd object struct mdev_parent,
but doesn't hold the kref. The lifetime of the parent becomes implicit
because parent_remove_sysfs_files() is supposed to remove all the access
before the parent can be freed, but this is very hard to reason about.
Make it obviously correct by adding the missing get.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Message-Id: <7-v2-d36939638fc6+d54-vfio2_jgg@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions