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    Subject[PATCH 3.13 015/105] KVM: s390: unintended fallthrough for external call
    Date
    3.13.11.10 -stable review patch.  If anyone has any objections, please let me know.

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

    From: Christian Borntraeger <borntraeger@de.ibm.com>

    commit f346026e55f1efd3949a67ddd1dcea7c1b9a615e upstream.

    We must not fallthrough if the conditions for external call are not met.

    Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
    Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
    Signed-off-by: Kamal Mostafa <kamal@canonical.com>
    ---
    arch/s390/kvm/interrupt.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
    index 5f79d2d..f1ba119 100644
    --- a/arch/s390/kvm/interrupt.c
    +++ b/arch/s390/kvm/interrupt.c
    @@ -71,6 +71,7 @@ static int __interrupt_is_deliverable(struct kvm_vcpu *vcpu,
    return 0;
    if (vcpu->arch.sie_block->gcr[0] & 0x2000ul)
    return 1;
    + return 0;
    case KVM_S390_INT_EMERGENCY:
    if (psw_extint_disabled(vcpu))
    return 0;
    --
    1.9.1


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