diff --git a/hw/net/spapr_llan.c b/hw/net/spapr_llan.c index ecb30b7c76..8af33d91b6 100644 --- a/hw/net/spapr_llan.c +++ b/hw/net/spapr_llan.c @@ -770,6 +770,12 @@ static target_ulong h_change_logical_lan_mac(PowerPCCPU *cpu, SpaprVioVlan *dev = VIO_SPAPR_VLAN_DEVICE(sdev); int i; + if (!dev) { + hcall_dprintf("H_CHANGE_LOGICAL_LAN_MAC called when " + "no NIC is present\n"); + return H_PARAMETER; + } + for (i = 0; i < ETH_ALEN; i++) { dev->nicconf.macaddr.a[ETH_ALEN - i - 1] = macaddr & 0xff; macaddr >>= 8;