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| author | Arnd Bergmann <arnd@arndb.de> | 2014-09-05 16:53:56 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2014-09-05 16:53:56 +0200 |
| commit | 184df9ddaab4a572e61b321abc079ca49155fc12 (patch) | |
| tree | 5c99704d8508224b25552f24959b54772d8eec1e /drivers/iommu/intel-iommu.c | |
| parent | 647f95fa99b16e7c7854a202e91e6aa22ebeecf4 (diff) | |
| parent | 13298fbbdb3f6a0ef55419dc048e064c7a7b0ef8 (diff) | |
Merge tag 'renesas-kconfig-cleanups-for-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/cleanup
Pull "Renesas ARM Based SoC Kconfig Cleanups for v3.18" from Simon Horman:
* Update name of "R-Car M2-W" SoC (previously there was no "-W")
* Consolidate Legacy SH_CLK_CPG and CPU_V7 Kconfig
* Only select PM_RMOBILE for legacy case
* Cleanup pm-rcar.o and pm-rmobile.o build using Kconfig
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* tag 'renesas-kconfig-cleanups-for-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7791 is now called "R-Car M2-W"
ARM: shmobile: Consolidate Legacy SH_CLK_CPG Kconfig
ARM: shmobile: Consolidate Legacy CPU_V7 Kconfig
ARM: shmobile: Only select PM_RMOBILE for legacy case
ARM: shmobile: Cleanup pm-rmobile.o build using Kconfig
ARM: shmobile: Cleanup pm-rcar.o build using Kconfig
ARM: shmobile: Introduce a Kconfig entry for R-Car Gen2
ARM: shmobile: Introduce a Kconfig entry for R-Car Gen1
ARM: shmobile: Introduce a Kconfig entry for R-Mobile
Includes an update to 3.17-rc2 to avoid a dependency
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 d1f5caad04f..5619f264862 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; |