summaryrefslogtreecommitdiff
path: root/arch/powerpc/mm/copro_fault.c
diff options
context:
space:
mode:
authorJoel Stanley <joel@jms.id.au>2016-11-21 02:38:38 +0300
committerJoel Stanley <joel@jms.id.au>2016-11-21 02:38:47 +0300
commitc55cf1296a0429d91b940a49a59977617a4e4cb3 (patch)
tree11d7ae008a0ad5bfe4110966b6df7c44cff723fd /arch/powerpc/mm/copro_fault.c
parent5509e6ee766f6b910c3b81c02bae291fc1d9a806 (diff)
parent86429bd405de5741df4127096deae0b1d90b68f1 (diff)
downloadlinux-dev-4.4.tar.xz
Merge tag 'v4.4.33' into dev-4.4openbmc-4.4-20161121-1dev-4.4
This is the 4.4.33 stable release Signed-off-by: Joel Stanley <joel@jms.id.au>
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);