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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-19 13:37:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-19 13:37:57 -0700
commitdeb521c44fa529b24cc78a64702757a683f82487 (patch)
tree36423a9de6427ada2eb3393f1d67036902c947a1 /mm/mmu_notifier.c
parent17dbe27d8446232fdc7c69e9818cce5bbc6b3e31 (diff)
remap_file_pages: correctly handle the case of a NULL vm_ops pointer
In commit 0b173bc4daa8 ("mm: kill vma flag VM_CAN_NONLINEAR") we replaced the VM_CAN_NONLINEAR test with checking whether the mapping has a '->remap_pages()' vm operation, but there is no guarantee that there it even has a vm_ops pointer at all. Add the appropriate test for NULL vm_ops. Reported-by: Sasha Levin <levinsasha928@gmail.com> Cc: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mmu_notifier.c')
0 files changed, 0 insertions, 0 deletions