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qlcnic: Fix panic while setting VF's MAC address 

o "qlcnic_sriov" structure pointer should be accessed only
  when SR-IOV is enabled. Access this pointer after SR-IOV
  PF check.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Manish Chopra 2013-07-19 16:56:30 -04:00 committed by David S. Miller
parent 8dc394af2e
commit cab150b587
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
View File

@ -1621,13 +1621,15 @@ int qlcnic_sriov_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_sriov *sriov = adapter->ahw->sriov;
int i, num_vfs = sriov->num_vfs;
int i, num_vfs;
struct qlcnic_vf_info *vf_info;
u8 *curr_mac;
if (!qlcnic_sriov_pf_check(adapter))
return -EOPNOTSUPP;
num_vfs = sriov->num_vfs;
if (!is_valid_ether_addr(mac) || vf >= num_vfs)
return -EINVAL;