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| author | Jason Gunthorpe <jgg@mellanox.com> | 2019-05-23 11:40:24 -0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-06-24 17:38:18 -0300 |
| commit | 2dcc3eb8ab50c9ca816cc60abfd94bea559d3e86 (patch) | |
| tree | f993a20fd2e73d85bbb61d1ba118eac9ae5410f5 /drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c | |
| parent | 187229c2ddd12a5bb5cd6bb3fbef9ecbc6eead92 (diff) | |
mm/hmm: Poison hmm_range during unregister
Trying to misuse a range outside its lifetime is a kernel bug. Use poison
bytes to help detect this condition. Double unregister will reliably crash.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Philip Yang <Philip.Yang@amd.com>
Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c')
0 files changed, 0 insertions, 0 deletions