ixgbe: fix crash with empty VF macvlan list

[platform/kernel/linux-starfive.git] / drivers / net / ethernet / intel / ixgbe / ixgbe_sriov.c

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 29cc609..ea88ac0 100644 (file)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -28,6 +28,9 @@ static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter,
        struct vf_macvlans *mv_list;
        int num_vf_macvlans, i;
 
+       /* Initialize list of VF macvlans */
+       INIT_LIST_HEAD(&adapter->vf_mvs.l);
+
        num_vf_macvlans = hw->mac.num_rar_entries -
                          (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
        if (!num_vf_macvlans)
@@ -36,8 +39,6 @@ static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter,
        mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
                          GFP_KERNEL);
        if (mv_list) {
-               /* Initialize list of VF macvlans */
-               INIT_LIST_HEAD(&adapter->vf_mvs.l);
                for (i = 0; i < num_vf_macvlans; i++) {
                        mv_list[i].vf = -1;
                        mv_list[i].free = true;