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-rw-r--r--arch/powerpc/platforms/pseries/iommu.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 0dbadbb34f3a..dae3f8847117 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -530,10 +530,7 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
530 } 530 }
531 pr_debug(" parent is %s\n", pdn->full_name); 531 pr_debug(" parent is %s\n", pdn->full_name);
532 532
533 /* Check for parent == NULL so we don't try to setup the empty EADS 533 if (dma_window == NULL) {
534 * slots on POWER4 machines.
535 */
536 if (dma_window == NULL || pdn->parent == NULL) {
537 pr_debug(" no dma window for device, linking to parent\n"); 534 pr_debug(" no dma window for device, linking to parent\n");
538 set_iommu_table_base(&dev->dev, PCI_DN(pdn)->iommu_table); 535 set_iommu_table_base(&dev->dev, PCI_DN(pdn)->iommu_table);
539 return; 536 return;