This patchset contains misc improve patches. Mainly to improve safety from 
invalid dts input.

Change notes:
v3: a) Add platform_device_put from Robin.
    b) Use component_match_add instead component_match_add_release suggested 
from Robin.
    a) Rebase on v5.19-rc1.
    b) Add a New patch [5/5] just remove a variable that only is for v1.

    Base on linux-next-20220510.
    the improve safety from dts is base on:

Guenter Roeck (1):
  iommu/mediatek: Validate number of phandles associated with

Yong Wu (6):
  iommu/mediatek: Use dev_err_probe to mute probe_defer err log
  iommu/mediatek: Remove unused "mapping" member from mtk_iommu_data
  iommu/mediatek: Add platform_device_put for recovering the device
  iommu/mediatek: Use component_match_add
  iommu/mediatek: Add error path for loop of mm_dts_parse
  iommu/mediatek: Improve safety for mediatek,smi property in larb nodes

 drivers/iommu/mtk_iommu.c | 117 +++++++++++++++++++++++++++-----------
 1 file changed, 84 insertions(+), 33 deletions(-)


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