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| author |   Joerg Roedel <jroedel@suse.de> | 2015-10-20 17:33:34 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2015-10-21 11:29:26 +0200 |
| commit | f34c73f55a06ac443c492fc11b85f7a44dfdc112 (patch) | |
| tree | ebe71ad583fb74d04d65e9c85af2a6d2d724cb5c /drivers/iommu | |
| parent | iommu/amd: Drop null test before destroy functions (diff) | |
| download | linux-dev-f34c73f55a06ac443c492fc11b85f7a44dfdc112.tar.xz linux-dev-f34c73f55a06ac443c492fc11b85f7a44dfdc112.zip | |
iommu/amd: Do not BUG_ON in __detach_device()
The condition in the BUG_ON is an indicator of a BUG, but no
reason to kill the code path. Turn it into a WARN_ON and
bail out if it is hit.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index f82060e778a2..6070b1504497 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2204,7 +2204,8 @@ static void __detach_device(struct iommu_dev_data *dev_data) struct protection_domain *domain; unsigned long flags; - BUG_ON(!dev_data->domain); + if (WARN_ON(!dev_data->domain)) + return; domain = dev_data->domain; |