diff options
| -rw-r--r-- | drivers/iommu/mtk_iommu_v1.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index be22fcf988ce..1467ba1e4417 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -425,6 +425,15 @@ static struct iommu_device *mtk_iommu_probe_device(struct device *dev) struct mtk_iommu_data *data; int err, idx = 0; + /* + * In the deferred case, free the existed fwspec. + * Always initialize the fwspec internally. + */ + if (fwspec) { + iommu_fwspec_free(dev); + fwspec = dev_iommu_fwspec_get(dev); + } + while (!of_parse_phandle_with_args(dev->of_node, "iommus", "#iommu-cells", idx, &iommu_spec)) { |