diff options
| author | Joerg Roedel <[email protected]> | 2016-02-29 23:49:47 +0100 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2016-02-29 23:55:16 +0100 |
| commit | e6a8c9b337eed56eb481e1b4dd2180c25a1e5310 (patch) | |
| tree | 8877331f815a1e08dde63e6f91b19ca3cfc29381 /drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | |
| parent | b6809ee573cc2f8de97f7c8f45eacc5db1129060 (diff) | |
iommu/vt-d: Use BUS_NOTIFY_REMOVED_DEVICE in hotplug path
In the PCI hotplug path of the Intel IOMMU driver, replace
the usage of the BUS_NOTIFY_DEL_DEVICE notifier, which is
executed before the driver is unbound from the device, with
BUS_NOTIFY_REMOVED_DEVICE, which runs after that.
This fixes a kernel BUG being triggered in the VT-d code
when the device driver tries to unmap DMA buffers and the
VT-d driver already destroyed all mappings.
Reported-by: Stefani Seibold <[email protected]>
Cc: [email protected] # v4.3+
Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_display.c')
0 files changed, 0 insertions, 0 deletions