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author | Jason Gunthorpe <jgg@mellanox.com> | 2020-02-28 20:30:37 +0100 |
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committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-03-26 18:33:37 +0100 |
commit | dfdc22078f3f064d2659acdc42d886834f3a3863 (patch) | |
tree | 4f1075acec97ffc965f156d6105e966ccea95efb /drivers/tty/cyclades.c | |
parent | Linux 5.6-rc3 (diff) | |
download | linux-dfdc22078f3f064d2659acdc42d886834f3a3863.tar.xz linux-dfdc22078f3f064d2659acdc42d886834f3a3863.zip |
mm/hmm: add missing unmaps of the ptep during hmm_vma_handle_pte()
Many of the direct returns of error skipped doing the pte_unmap(). All non
zero exit paths must unmap the pte.
The pte_unmap() is split unnaturally like this because some of the error
exit paths trigger a sleep and must release the lock before sleeping.
Fixes: 992de9a8b751 ("mm/hmm: allow to mirror vma of a file on a DAX backed filesystem")
Fixes: 53f5c3f489ec ("mm/hmm: factor out pte and pmd handling to simplify hmm_vma_walk_pmd()")
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/tty/cyclades.c')
0 files changed, 0 insertions, 0 deletions