iommu/tegra-smmu: Use kcalloc() to allocate counter array
authorRussell King <rmk+kernel@arm.linux.org.uk>
Mon, 27 Jul 2015 12:29:31 +0000 (13:29 +0100)
committerThierry Reding <treding@nvidia.com>
Thu, 13 Aug 2015 14:06:40 +0000 (16:06 +0200)
commit32924c76b0cbc67aa4cf0741f7bc6c37f097aaf3
treeac81012aeb76c50918a59aed8c4dcac85561ded6
parent853520fa96511e4a49942d2cba34a329528c7e41
iommu/tegra-smmu: Use kcalloc() to allocate counter array

Use kcalloc() to allocate the use-counter array for the page directory
entries/page tables.  Using kcalloc() allows us to be provided with
zero-initialised memory from the allocators, rather than initialising
it ourselves.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drivers/iommu/tegra-smmu.c