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of: iommu: Increment DT node refcount in of_iommu_set_ops()

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We are saving pointer to iommu DT node in of_iommu_set_ops()
hence we should increment DT node ref count.

Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Anup Patel 2016-01-27 10:51:16 +05:30 committed by Will Deacon
parent 9adb95949a
commit 45bb966d3d
1 changed files with 1 additions and 0 deletions
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drivers/iommu/of_iommu.c
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@ -110,6 +110,7 @@ void of_iommu_set_ops(struct device_node *np, struct iommu_ops *ops)
if (WARN_ON(!iommu))
return;
of_node_get(np);
INIT_LIST_HEAD(&iommu->list);
iommu->np = np;
iommu->ops = ops;