[PATCH 3.16.y-ckt 008/216] KVM: s390: Fix size of monitor-class number field

Luis Henriques luis.henriques at canonical.com
Mon Jan 12 18:02:05 UTC 2015


3.16.7-ckt4 -stable review patch.  If anyone has any objections, please let me know.

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

From: Thomas Huth <thuth at linux.vnet.ibm.com>

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 at linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi at linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger at de.ibm.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 arch/s390/kvm/interrupt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 5d5ebd400162..db3625ae7a47 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -247,7 +247,7 @@ static int __deliver_prog_irq(struct kvm_vcpu *vcpu,
 		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;
-- 
2.1.4





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