iommu/omap: Increase group ref in .device_group()
Increase group refcounting in omap_iommu_device_group(). Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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@ -1536,7 +1536,7 @@ static struct iommu_group *omap_iommu_device_group(struct device *dev)
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struct iommu_group *group = ERR_PTR(-EINVAL);
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if (arch_data->iommu_dev)
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group = arch_data->iommu_dev->group;
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group = iommu_group_ref_get(arch_data->iommu_dev->group);
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return group;
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}
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