[PATCH 05/60][SRU][OEM-5.6] iommu/tegra-gart: Remove direct access of dev->iommu_fwspec

[You-Sheng Yang]

From: Joerg Roedel <jroedel at suse.de>

BugLink: https://bugs.launchpad.net/bugs/1876707

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

Signed-off-by: Joerg Roedel <jroedel at suse.de>
Reviewed-by: Jean-Philippe Brucker <jean-philippe at linaro.org>
Link: https://lore.kernel.org/r/20200326150841.10083-5-joro@8bytes.org
(cherry picked from commit 8c3d69237eb2cae01a015fefed4b770284e4ebd4)
Signed-off-by: You-Sheng Yang <vicamo.yang at canonical.com>
---
 drivers/iommu/tegra-gart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index 3fb7ba72507d..db6559e8336f 100644
--- 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);
-- 
2.25.1