linux-phytec-ti

drm/exynos: fimd: check error status for drm_iommu_attach_device

check error status for drm_iommu_attach_device() and make sure
it propagates till the caller.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Inki Dae <daeinki@gmail.com>