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| author | Rob Herring <robh@kernel.org> | 2014-01-17 16:01:27 -0600 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2014-01-17 16:01:27 -0600 |
| commit | 361128fcbf30f590a05c8e8789155364f37367db (patch) | |
| tree | 7f7973599e286dfd48ea724a5b7fb4bca76b294e /mm/rmap.c | |
| parent | e2897d7e0b0460dca91b52d55ce41c888363502d (diff) | |
| parent | 482c43419fc204b4b658fa4acb80cd502e5fcbac (diff) | |
| download | blackbird-op-linux-361128fcbf30f590a05c8e8789155364f37367db.tar.gz blackbird-op-linux-361128fcbf30f590a05c8e8789155364f37367db.zip | |
Merge remote-tracking branch 'grant/devicetree/next' into for-3.14
Diffstat (limited to 'mm/rmap.c')
| -rw-r--r-- | mm/rmap.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 55c8b8dc9ffb..068522d8502a 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -600,7 +600,11 @@ pte_t *__page_check_address(struct page *page, struct mm_struct *mm, spinlock_t *ptl; if (unlikely(PageHuge(page))) { + /* when pud is not present, pte will be NULL */ pte = huge_pte_offset(mm, address); + if (!pte) + return NULL; + ptl = huge_pte_lockptr(page_hstate(page), mm, pte); goto check; } |
