diff options
| author | Felipe Balbi <balbi@ti.com> | 2014-09-08 14:39:01 -0500 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-09-08 14:39:01 -0500 |
| commit | f7cc38b16e2741186253be3dff61a9d124112126 (patch) | |
| tree | efce170d7c0c4baf6924275e6a42d11fa47c9290 /drivers/iommu/intel-iommu.c | |
| parent | efb540c895d2cb77b1472edda6ca45d40719a041 (diff) | |
| parent | 2ce7598c9a453e0acd0e07be7be3f5eb39608ebd (diff) | |
Merge tag 'v3.17-rc4' into next
Merge Linux 3.17-rc4 here so we have all the latest
fixes on next too. This also cleans up a few conflicts
when applying patches.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Conflicts:
drivers/usb/gadget/Makefile
drivers/usb/gadget/function/Makefile
drivers/usb/gadget/legacy/Makefile
drivers/usb/phy/phy-samsung-usb.h
Diffstat (limited to 'drivers/iommu/intel-iommu.c')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index d1f5caad04f9..5619f264862d 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -3869,6 +3869,14 @@ static int device_notifier(struct notifier_block *nb, action != BUS_NOTIFY_DEL_DEVICE) return 0; + /* + * If the device is still attached to a device driver we can't + * tear down the domain yet as DMA mappings may still be in use. + * Wait for the BUS_NOTIFY_UNBOUND_DRIVER event to do that. + */ + if (action == BUS_NOTIFY_DEL_DEVICE && dev->driver != NULL) + return 0; + domain = find_domain(dev); if (!domain) return 0; |