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KVM: s390: check the given debug flags, not the set ones 

This patch fixes a minor bug when updating the guest debug settings.
We should check the given debug flags, not the already set ones.
Doesn't do any harm but too many (for now unused) flags could be set internally
without error.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
David Hildenbrand 2014-05-20 17:25:20 +02:00 committed by Christian Borntraeger
parent 22ff4a3366
commit 2de3bfc25a
1 changed files with 1 additions and 1 deletions
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2
arch/s390/kvm/kvm-s390.c
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@ -950,7 +950,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
vcpu->guest_debug = 0;
kvm_s390_clear_bp_data(vcpu);
if (vcpu->guest_debug & ~VALID_GUESTDBG_FLAGS)
if (dbg->control & ~VALID_GUESTDBG_FLAGS)
return -EINVAL;
if (dbg->control & KVM_GUESTDBG_ENABLE) {