aboutsummaryrefslogtreecommitdiff
path: root/mm/rmap.c
diff options
context:
space:
mode:
authorDaniel Vetter <daniel.vetter@ffwll.ch>2014-01-16 22:06:30 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-01-16 22:06:30 +0100
commit0d9d349d8788d30f3fc3bb39279c370f94d9dbec (patch)
tree874f301d180bd2a80dee68ec4caf79ff64f9bed9 /mm/rmap.c
parentcba1c07377132fb87b2c73b395ef386da7e03f60 (diff)
parent145830dfb005961cb507a578c9d2e7622f0b3716 (diff)
Merge commit origin/master into drm-intel-next
Conflicts are getting out of hand, and now we have to shuffle even more in -next which was also shuffled in -fixes (the call for drm_mode_config_reset needs to move yet again). So do a proper backmerge. I wanted to wait with this for the 3.13 relaese, but alas let's just do this now. Conflicts: drivers/gpu/drm/i915/i915_reg.h drivers/gpu/drm/i915/intel_ddi.c drivers/gpu/drm/i915/intel_display.c drivers/gpu/drm/i915/intel_pm.c Besides the conflict around the forcewake get/put (where we chaged the called function in -fixes and added a new parameter in -next) code all the current conflicts are of the adjacent lines changed type. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'mm/rmap.c')
-rw-r--r--mm/rmap.c4
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;
}