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

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Message-Id: <20150114072058.745732169@linuxfoundation.org>
Date:	Tue, 13 Jan 2015 23:22:15 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Thomas Huth <thuth@...ux.vnet.ibm.com>,
	David Hildenbrand <dahi@...ux.vnet.ibm.com>,
	Christian Borntraeger <borntraeger@...ibm.com>
Subject: [PATCH 3.18 064/150] KVM: s390: Fix size of monitor-class number field

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

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

From: Thomas Huth <thuth@...ux.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@...ux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@...ux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@...ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 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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