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ice: Fix a few null pointer dereference issues

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1) When ice_ena_msix_range() fails to reserve vectors, a devm_kfree()
   warning was seen in the error flow path. So check pf->irq_tracker
   before use in ice_clear_interrupt_scheme().

2) In ice_vsi_cfg(), check vsi->netdev before use.

3) In ice_get_link_status, check link_up before use.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Anirudh Venkataramanan 2018-08-09 06:29:00 -07:00 committed by Jeff Kirsher
parent 3bcd7fa37f
commit c7f2c42b80
2 changed files with 11 additions and 8 deletions
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2
drivers/net/ethernet/intel/ice/ice_common.c
View File

@ -1483,7 +1483,7 @@ enum ice_status ice_get_link_status(struct ice_port_info *pi, bool *link_up)
struct ice_phy_info *phy_info;
enum ice_status status = 0;
if (!pi)
if (!pi || !link_up)
return ICE_ERR_PARAM;
phy_info = &pi->phy;

17
drivers/net/ethernet/intel/ice/ice_main.c
View File

@ -3257,8 +3257,10 @@ static void ice_clear_interrupt_scheme(struct ice_pf *pf)
if (test_bit(ICE_FLAG_MSIX_ENA, pf->flags))
ice_dis_msix(pf);
devm_kfree(&pf->pdev->dev, pf->irq_tracker);
pf->irq_tracker = NULL;
if (pf->irq_tracker) {
devm_kfree(&pf->pdev->dev, pf->irq_tracker);
pf->irq_tracker = NULL;
}
}
/**
@ -4112,11 +4114,12 @@ static int ice_vsi_cfg(struct ice_vsi *vsi)
{
int err;
ice_set_rx_mode(vsi->netdev);
err = ice_restore_vlan(vsi);
if (err)
return err;
if (vsi->netdev) {
ice_set_rx_mode(vsi->netdev);
err = ice_restore_vlan(vsi);
if (err)
return err;
}
err = ice_vsi_cfg_txqs(vsi);
if (!err)