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-rw-r--r--arch/powerpc/platforms/pseries/vio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index 49e04ec19238..0e7778be4c49 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -1195,6 +1195,8 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
if (tbl == NULL)
return NULL;
+ kref_init(&tbl->it_kref);
+
of_parse_dma_window(dev->dev.of_node, dma_window,
&tbl->it_index, &offset, &size);