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authorDmitry Shmidt <dimitrysh@google.com>2016-10-28 10:44:19 -0700
committerDmitry Shmidt <dimitrysh@google.com>2016-10-28 10:44:19 -0700
commitc302df26cb5bf9f60633785cf5b5ed162a138dfe (patch)
treed7e1f042a5a478a616010ff42e27fbf1547eca8e /arch/powerpc/mm/copro_fault.c
parenta979feb9e9f1827463f61ad241b198aa7dc27cd3 (diff)
parentc843445f19f4e6f05b32125d7556958f98033999 (diff)
Merge tag 'v4.4.28' into android-4.4.y
This is the 4.4.28 stable release
Diffstat (limited to 'arch/powerpc/mm/copro_fault.c')
-rw-r--r--arch/powerpc/mm/copro_fault.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c
index 6527882ce05e..ddfd2740a1b5 100644
--- a/arch/powerpc/mm/copro_fault.c
+++ b/arch/powerpc/mm/copro_fault.c
@@ -106,6 +106,8 @@ int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb)
switch (REGION_ID(ea)) {
case USER_REGION_ID:
pr_devel("%s: 0x%llx -- USER_REGION_ID\n", __func__, ea);
+ if (mm == NULL)
+ return 1;
psize = get_slice_psize(mm, ea);
ssize = user_segment_size(ea);
vsid = get_vsid(mm->context.id, ea, ssize);