From: anup.patel@broadcom.com (Anup Patel)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 3/6] of: iommu: Increment DT node refcount in of_iommu_set_ops()
Date: Wed, 27 Jan 2016 10:51:16 +0530 [thread overview]
Message-ID: <1453872079-27140-4-git-send-email-anup.patel@broadcom.com> (raw)
In-Reply-To: <1453872079-27140-1-git-send-email-anup.patel@broadcom.com>
We are saving pointer to iommu DT node in of_iommu_set_ops()
hence we should increment DT node ref count.
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
---
drivers/iommu/of_iommu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index 60ba238..5fea665 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -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;
--
1.9.1
next prev parent reply other threads:[~2016-01-27 5:21 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-27 5:21 [RFC PATCH 0/6] iommu/arm-smmu: Add support for DMA domains and instruction fetch Anup Patel
2016-01-27 5:21 ` [RFC PATCH 1/6] iommu/arm-smmu: Init driver using IOMMU_OF_DECLARE Anup Patel
2016-01-27 5:21 ` [RFC PATCH 2/6] iommu/arm-smmu: Invoke DT probe from arm_smmu_of_setup() Anup Patel
2016-01-27 5:21 ` Anup Patel [this message]
2016-01-28 17:15 ` [RFC PATCH 3/6] of: iommu: Increment DT node refcount in of_iommu_set_ops() Robin Murphy
2016-01-27 5:21 ` [RFC PATCH 4/6] iommu/arm-smmu: Add support for IOMMU_DOMAIN_DMA in SMMUv1/SMMUv2 driver Anup Patel
2016-01-28 17:28 ` Robin Murphy
2016-01-28 17:48 ` Mark Rutland
2016-01-29 3:58 ` Anup Patel
2016-01-27 5:21 ` [RFC PATCH 5/6] iommu/arm-smmu: Option to treat instruction fetch as data read for SMMUv2 Anup Patel
2016-01-28 17:10 ` Robin Murphy
2016-01-29 3:42 ` Anup Patel
2016-01-27 5:21 ` [RFC PATCH 6/6] iommu/arm-smmu: Update bindings document for smmu-inst-as-data DT option Anup Patel
2016-01-27 12:28 ` Mark Rutland
2016-01-27 14:22 ` Anup Patel
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