iommu/arm-smmu: Fix error checking for ASID and VMID allocation

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The bitmap allocator returns an int, which is one of the standard
negative values on failure. Rather than assigning this straight to a
u16 (like we do for the ASID and VMID callers), which means that we
won't detect failure correctly, use an int for the purposes of error
checking.

Cc: <stable@vger.kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Will Deacon 2015-10-13 17:51:14 +01:00

parent 668b4ada1c

commit c0733a2cf3

1 changed files with 5 additions and 4 deletions

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drivers/iommu/arm-smmu-v3.c

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