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Message-ID: <1453872079-27140-4-git-send-email-anup.patel@broadcom.com>
Date: Wed, 27 Jan 2016 10:51:16 +0530
From: Anup Patel <anup.patel@...adcom.com>
To: Catalin Marinas <catalin.marinas@....com>,
Joerg Roedel <joro@...tes.org>,
Will Deacon <will.deacon@....com>,
Robin Murphy <Robin.Murphy@....com>,
Sricharan R <sricharan@...eaurora.org>,
Linux IOMMU <iommu@...ts.linux-foundation.org>,
Linux ARM Kernel <linux-arm-kernel@...ts.infradead.org>
CC: Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
"Mark Rutland" <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
"Device Tree" <devicetree@...r.kernel.org>,
Ray Jui <rjui@...adcom.com>,
Scott Branden <sbranden@...adcom.com>,
Vikram Prakash <vikramp@...adcom.com>,
"Linux Kernel" <linux-kernel@...r.kernel.org>,
BCM Kernel Feedback <bcm-kernel-feedback-list@...adcom.com>,
Anup Patel <anup.patel@...adcom.com>
Subject: [RFC PATCH 3/6] of: iommu: Increment DT node refcount in of_iommu_set_ops()
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@...adcom.com>
Reviewed-by: Ray Jui <rjui@...adcom.com>
Reviewed-by: Scott Branden <sbranden@...adcom.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
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