iommu/of: Take a ref to the IOMMU driver during ->of_xlate()

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Ensure that we hold a reference to the IOMMU driver module while calling
the '->of_xlate()' callback during early device probing.

Signed-off-by: Will Deacon <will@kernel.org>
Tested-by: John Garry <john.garry@huawei.com> # smmu v3
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Will Deacon 2019-12-19 12:03:42 +00:00 • committed by Joerg Roedel

parent 25f003de98

commit 386dce2788

1 changed files with 12 additions and 6 deletions

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drivers/iommu/of_iommu.c

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