diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-14 22:17:40 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-14 22:17:40 -0700 |
| commit | 882ebfc28c389be86535bda4a7d9e407020356bf (patch) | |
| tree | e8f3ddeda13196f40040f3ba4701ece5d38c63cc /drivers/iommu/fsl_pamu_domain.c | |
| parent | 1c84cd48a117486166f3597c081b170b76e5bd81 (diff) | |
| parent | 9e82bf014195d6f0054982c463575cdce24292be (diff) | |
Merge 3.17-rc5 into tty-next
We want those fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iommu/fsl_pamu_domain.c')
| -rw-r--r-- | drivers/iommu/fsl_pamu_domain.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c index 61d1dafa242..56feed7cec1 100644 --- a/drivers/iommu/fsl_pamu_domain.c +++ b/drivers/iommu/fsl_pamu_domain.c @@ -984,7 +984,7 @@ static int fsl_pamu_add_device(struct device *dev) struct iommu_group *group = ERR_PTR(-ENODEV); struct pci_dev *pdev; const u32 *prop; - int ret, len; + int ret = 0, len; /* * For platform devices we allocate a separate group for @@ -1007,7 +1007,13 @@ static int fsl_pamu_add_device(struct device *dev) if (IS_ERR(group)) return PTR_ERR(group); - ret = iommu_group_add_device(group, dev); + /* + * Check if device has already been added to an iommu group. + * Group could have already been created for a PCI device in + * the iommu_group_get_for_dev path. + */ + if (!dev->iommu_group) + ret = iommu_group_add_device(group, dev); iommu_group_put(group); return ret; |