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| author | Alex Shi <alex.shi@linaro.org> | 2017-07-18 14:31:54 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2017-07-18 14:31:54 +0800 |
| commit | 16e243013beb93902693c4bb90e4348c99588429 (patch) | |
| tree | 6a5858d948085974ef1f26bb1e4b546cfb44cfc5 /drivers/vfio/vfio_iommu_spapr_tce.c | |
| parent | 2120557722577d8cff75a33a799ad15582dbd8ef (diff) | |
| parent | 5289d9c979092878f2bf741d8b365ef7565fb6db (diff) | |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidlsk-v4.4-17.07-android
Diffstat (limited to 'drivers/vfio/vfio_iommu_spapr_tce.c')
| -rw-r--r-- | drivers/vfio/vfio_iommu_spapr_tce.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c index 1a9f18b40be6..34e4b3ad8b92 100644 --- a/drivers/vfio/vfio_iommu_spapr_tce.c +++ b/drivers/vfio/vfio_iommu_spapr_tce.c @@ -1163,6 +1163,10 @@ static int tce_iommu_attach_group(void *iommu_data, /* pr_debug("tce_vfio: Attaching group #%u to iommu %p\n", iommu_group_id(iommu_group), iommu_group); */ table_group = iommu_group_get_iommudata(iommu_group); + if (!table_group) { + ret = -ENODEV; + goto unlock_exit; + } if (tce_groups_attached(container) && (!table_group->ops || !table_group->ops->take_ownership || |