[PATCH 3.18 064/150] KVM: s390: Fix size of monitor-class number field

From: Greg Kroah-Hartman
Date: Wed Jan 14 2015 - 03:36:33 EST


3.18-stable review patch. If anyone has any objections, please let me know.

------------------

From: Thomas Huth <thuth@xxxxxxxxxxxxxxxxxx>

commit a36c5393266222129ce6f622e3bc3fb5463f290c upstream.

The monitor-class number field is only 16 bits, so we have to use
a u16 pointer to access it.

Signed-off-by: Thomas Huth <thuth@xxxxxxxxxxxxxxxxxx>
Reviewed-by: David Hildenbrand <dahi@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
arch/s390/kvm/interrupt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -270,7 +270,7 @@ static int __must_check __deliver_prog_i
break;
case PGM_MONITOR:
rc = put_guest_lc(vcpu, pgm_info->mon_class_nr,
- (u64 *)__LC_MON_CLASS_NR);
+ (u16 *)__LC_MON_CLASS_NR);
rc |= put_guest_lc(vcpu, pgm_info->mon_code,
(u64 *)__LC_MON_CODE);
break;


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