diff options
| author | Will Deacon <will@kernel.org> | 2019-12-19 12:03:41 +0000 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2019-12-23 14:06:05 +0100 |
| commit | 25f003de987aed630db265ceae9cd978537a3f80 (patch) | |
| tree | 6a53d13ae038b397f968766a1a5c7fa9b1b5fc71 /drivers/iommu/of_iommu.c | |
| parent | 1a373a78b8e2fae1d61dd9c5ed22472045d83d24 (diff) | |
drivers/iommu: Take a ref to the IOMMU driver prior to ->add_device()
To avoid accidental removal of an active IOMMU driver module, take a
reference to the driver module in 'iommu_probe_device()' immediately
prior to invoking the '->add_device()' callback and hold it until the
after the device has been removed by '->remove_device()'.
Suggested-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Will Deacon <will@kernel.org>
Tested-by: John Garry <john.garry@huawei.com> # smmu v3
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/of_iommu.c')
0 files changed, 0 insertions, 0 deletions