iommu/arm-smmu-v3: Add a check to avoid invalid iotlb sync

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It may send a invalid tlb sync for smmuv3 if iotlb_gather is not valid
(iotlb_gather->pgsize = 0). So add a check to avoid invalid iotlb sync
for it.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1617109106-121844-1-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Will Deacon <will@kernel.org>

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Xiang Chen 2021-03-30 20:58:26 +08:00 • committed by Will Deacon

parent 655c447c97

commit 6cc7e5a9c6

1 changed files with 3 additions and 0 deletions

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drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c

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