powerpc/iommu: Avoid derefence before pointer check

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The tbl pointer is being derefenced by IOMMU_PAGE_SIZE prior the check
if it is not NULL.

Just moving the dereference code to after the check, where there will
be guarantee that 'tbl' will not be NULL.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Breno Leitao 2018-08-21 15:44:48 -03:00 • committed by Michael Ellerman

parent 8ac9e5bfd8

commit 984ecdd68d

1 changed files with 1 additions and 1 deletions

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arch/powerpc/kernel/iommu.c

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