linux-stable/drivers/vfio
Jason Gunthorpe 9a302449a5 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>
2021-04-07 15:39:17 -06:00
..
fsl-mc vfio: Remove device_data from the vfio bus driver API 2021-04-06 11:55:11 -06:00
mdev vfio/mdev: Add missing reference counting to mdev_type 2021-04-07 15:39:17 -06:00
pci Merge branches 'v5.13/vfio/embed-vfio_device', 'v5.13/vfio/misc' and 'v5.13/vfio/nvlink' into v5.13/vfio/next 2021-04-06 12:01:51 -06:00
platform Merge branches 'v5.13/vfio/embed-vfio_device', 'v5.13/vfio/misc' and 'v5.13/vfio/nvlink' into v5.13/vfio/next 2021-04-06 12:01:51 -06:00
Kconfig vfio: Depend on MMU 2021-03-16 10:39:28 -06:00
Makefile vfio/fsl-mc: Add VFIO framework skeleton for fsl-mc devices 2020-10-07 14:17:33 -06:00
vfio.c vfio: Remove device_data from the vfio bus driver API 2021-04-06 11:55:11 -06:00
vfio_iommu_spapr_tce.c vfio/spapr_tce: convert get_user_pages() --> pin_user_pages() 2020-07-27 13:43:38 -06:00
vfio_iommu_type1.c vfio/mdev: Add missing typesafety around mdev_device 2021-04-07 15:39:16 -06:00
vfio_spapr_eeh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
virqfd.c vfio/virqfd: Drain events from eventfd in virqfd_wakeup() 2020-11-15 09:49:10 -05:00