iommu/tegra-gart: Remove direct access of dev->iommu_fwspec

Use the accessor functions instead of directly dereferencing
dev->iommu_fwspec.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://lore.kernel.org/r/20200326150841.10083-5-joro@8bytes.org

diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index 3fb7ba7..db6559e 100644 (file)
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -247,7 +247,7 @@ static int gart_iommu_add_device(struct device *dev)
 {
        struct iommu_group *group;
 
-       if (!dev->iommu_fwspec)
+       if (!dev_iommu_fwspec_get(dev))
                return -ENODEV;
 
        group = iommu_group_get_for_dev(dev);