diff options
| author | Liang He <windhl@126.com> | 2022-07-19 20:49:55 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-25 11:11:25 +0200 |
| commit | b73104bb79a65ccf3abb8df4e5901b01dbcc829b (patch) | |
| tree | 38975ac4bd78d9cbf22e97aa6457f4251ba46cf8 /drivers/iommu | |
| parent | a1c08338eb0e114829825d467150374250159338 (diff) | |
| download | linux-rt-b73104bb79a65ccf3abb8df4e5901b01dbcc829b.tar.gz | |
iommu/arm-smmu: qcom_iommu: Add of_node_put() when breaking out of loop
[ Upstream commit a91eb6803c1c715738682fece095145cbd68fe0b ]
In qcom_iommu_has_secure_context(), we should call of_node_put()
for the reference 'child' when breaking out of for_each_child_of_node()
which will automatically increase and decrease the refcount.
Fixes: d051f28c8807 ("iommu/qcom: Initialize secure page table")
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220719124955.1242171-1-windhl@126.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/qcom_iommu.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c index 920a5df319bc..ad74f64d8876 100644 --- a/drivers/iommu/qcom_iommu.c +++ b/drivers/iommu/qcom_iommu.c @@ -745,9 +745,12 @@ static bool qcom_iommu_has_secure_context(struct qcom_iommu_dev *qcom_iommu) { struct device_node *child; - for_each_child_of_node(qcom_iommu->dev->of_node, child) - if (of_device_is_compatible(child, "qcom,msm-iommu-v1-sec")) + for_each_child_of_node(qcom_iommu->dev->of_node, child) { + if (of_device_is_compatible(child, "qcom,msm-iommu-v1-sec")) { + of_node_put(child); return true; + } + } return false; } |