Commit c719547f authored Apr 10, 2018 by Jérôme Glisse Committed by Linus Torvalds Apr 11, 2018

mm/hmm: hmm_pfns_bad() was accessing wrong struct

The private field of mm_walk struct point to an hmm_vma_walk struct and
not to the hmm_range struct desired.  Fix to get proper struct pointer.

Link: http://lkml.kernel.org/r/20180323005527.758-6-jglisse@redhat.com


Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Evgeny Baskakov <ebaskakov@nvidia.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Mark Hairgrove <mhairgrove@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent c01cbba2

mm/hmm.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -336,7 +336,8 @@ static int hmm_pfns_bad(unsigned long addr,
		unsigned long end,
		struct mm_walk *walk)
		{
		struct hmm_range *range = walk->private;
		struct hmm_vma_walk *hmm_vma_walk = walk->private;
		struct hmm_range *range = hmm_vma_walk->range;
		hmm_pfn_t *pfns = range->pfns;
		unsigned long i;

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