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iommu/vt-d: Remove dead code in device_notifier 

This code only runs when action == BUS_NOTIFY_REMOVED_DEVICE,
so it can't be BUS_NOTIFY_DEL_DEVICE.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel 2014-12-09 13:18:22 +01:00
parent 62c22167dd
commit 6d1b9cc9ee
1 changed files with 0 additions and 8 deletions
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8
drivers/iommu/intel-iommu.c
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@ -4029,14 +4029,6 @@ static int device_notifier(struct notifier_block *nb,
if (action != BUS_NOTIFY_REMOVED_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;