[PATCH 11/20] ath10k: Use iommu_paging_domain_alloc()

[Lu Baolu]

An iommu domain is allocated in ath10k_fw_init() and is attached to
ar_snoc->fw.dev in the same function. Use iommu_paging_domain_alloc() to
make it explicit.

Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
 drivers/net/wireless/ath/ath10k/snoc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c 
b/drivers/net/wireless/ath/ath10k/snoc.c
index 8530550cf5df..0fe47d51013c 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -1635,10 +1635,10 @@ static int ath10k_fw_init(struct ath10k *ar)
 
        ar_snoc->fw.dev = &pdev->dev;
 
-       iommu_dom = iommu_domain_alloc(&platform_bus_type);
-       if (!iommu_dom) {
+       iommu_dom = iommu_paging_domain_alloc(ar_snoc->fw.dev);
+       if (IS_ERR(iommu_dom)) {
                ath10k_err(ar, "failed to allocate iommu domain\n");
-               ret = -ENOMEM;
+               ret = PTR_ERR(iommu_dom);
                goto err_unregister;
        }
 
-- 
2.34.1