projects
/
firefly-linux-kernel-4.4.55.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
| inline |
side by side
Merge remote-tracking branches 'spi/topic/fsl-espi', 'spi/topic/gpio', 'spi/topic...
[firefly-linux-kernel-4.4.55.git]
/
mm
/
rmap.c
diff --git
a/mm/rmap.c
b/mm/rmap.c
index 55c8b8dc9ffb0c349eb63ad20a8d7bbcc2e9b25d..068522d8502a58e9465a963e68c37ce4ccf635d7 100644
(file)
--- 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;
}