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liquidio: fix PF falsely indicating success at setting MAC address of a nonexistent VF

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In the function assigned to .ndo_set_vf_mac, check the validity of the
vfidx argument before proceeding to tell the firmware to set the VF MAC
address.

Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Felix Manlunas 2017-05-16 11:28:00 -07:00 committed by David S. Miller
parent e1e3ce6236
commit 0d9a599784
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/cavium/liquidio/lio_main.c
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@ -3698,6 +3698,9 @@ static int liquidio_set_vf_mac(struct net_device *netdev, int vfidx, u8 *mac)
struct octeon_device *oct = lio->oct_dev;
int retval;
if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced)
return -EINVAL;
retval = __liquidio_set_vf_mac(netdev, vfidx, mac, true);
if (!retval)
cn23xx_tell_vf_its_macaddr_changed(oct, vfidx, mac);