[PATCH v6 0/6] iommu/mediatek: Improve safety from invalid dts input

[Yong Wu]

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

Change notes:
v6: No change code. just reword the commit message in [3/6] from Angelo.

v5: https://lore.kernel.org/linux-mediatek/20220919092405.8256-1-yong.wu@mediatek.com/
    a) Loop from MTK_LARB_NR_MAX in the error path from Angelo.
    b) Fix the redundant put_device for the error patch outside the loop from dan.
 
v4: https://lore.kernel.org/linux-mediatek/20220824064306.21495-1-yong.wu@mediatek.com/
    a) Just remove the first patch about dev_err_probe since it was merged.
    b) Rebase v6.0-rc1

v3: https://lore.kernel.org/linux-mediatek/20220701053942.3266-1-yong.wu@mediatek.com/
    a) Add platform_device_put from Robin.
    b) Use component_match_add instead component_match_add_release suggested from Robin.

v2: https://lore.kernel.org/linux-mediatek/20220616054203.11365-1-yong.wu@mediatek.com/
    a) Rebase on v5.19-rc1.
    b) Add a New patch [5/5] just remove a variable that only is for v1.

v1: https://lore.kernel.org/linux-mediatek/20220511064920.18455-1-yong.wu@mediatek.com/
    Base on linux-next-20220510.
    the improve safety from dts is base on:
    https://lore.kernel.org/linux-mediatek/20211210205704.1664928-1-linux@roeck-us.net/

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

Yong Wu (5):
  iommu/mediatek: Add platform_device_put for recovering the device
    refcnt
  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
  iommu/mediatek: Remove unused "mapping" member from mtk_iommu_data

 drivers/iommu/mtk_iommu.c | 106 +++++++++++++++++++++++++++-----------
 1 file changed, 76 insertions(+), 30 deletions(-)

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2.18.0