iommu/exynos: add missing put_device() call in exynos_iommu_of_xlate()
[ Upstream commit5.4-rM2-2.2.x-imx-squashed1a26044954
] if of_find_device_by_node() succeed, exynos_iommu_of_xlate() doesn't have a corresponding put_device(). Thus add put_device() to fix the exception handling for this function implementation. Fixes:aa759fd376
("iommu/exynos: Add callback for initializing devices from device tree") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20200918011335.909141-1-yukuai3@huawei.com Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
parent
08e66c0c1c
commit
eddeff708c
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@ -1299,13 +1299,17 @@ static int exynos_iommu_of_xlate(struct device *dev,
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return -ENODEV;
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return -ENODEV;
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data = platform_get_drvdata(sysmmu);
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data = platform_get_drvdata(sysmmu);
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if (!data)
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if (!data) {
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put_device(&sysmmu->dev);
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return -ENODEV;
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return -ENODEV;
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}
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if (!owner) {
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if (!owner) {
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owner = kzalloc(sizeof(*owner), GFP_KERNEL);
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owner = kzalloc(sizeof(*owner), GFP_KERNEL);
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if (!owner)
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if (!owner) {
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put_device(&sysmmu->dev);
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return -ENOMEM;
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return -ENOMEM;
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}
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INIT_LIST_HEAD(&owner->controllers);
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INIT_LIST_HEAD(&owner->controllers);
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mutex_init(&owner->rpm_lock);
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mutex_init(&owner->rpm_lock);
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