KVM: Fix KVM_SET_SIGNAL_MASK with arg == NULL

When the user passed in a NULL mask pass this on from the ioctl
handler.

Found by gcc 4.6's new warnings.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 78ed71a..84a0906 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1547,7 +1547,7 @@ out_free2:
                                goto out;
                        p = &sigset;
                }
-               r = kvm_vcpu_ioctl_set_sigmask(vcpu, &sigset);
+               r = kvm_vcpu_ioctl_set_sigmask(vcpu, p);
                break;
        }
        case KVM_GET_FPU: {