This accidentally ended up locking and then immediately unlocking kvm->lock
at the beginning of the function. Fix it.
Fixes: a76b9641ad1c ("KVM: x86/xen: add KVM_XEN_HVM_SET_ATTR/KVM_XEN_HVM_GET_ATTR")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <
20210208232326.
1830370-2-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 
        mutex_lock(&kvm->lock);
 
-       mutex_unlock(&kvm->lock);
-
        switch (data->type) {
        case KVM_XEN_ATTR_TYPE_LONG_MODE:
                if (!IS_ENABLED(CONFIG_64BIT) && data->u.long_mode) {