| Message ID | 20180809132903.22819-11-anirudh.venkataramanan@intel.com |
|---|---|
| State | Accepted |
| Delegated to: | Jeff Kirsher |
| Headers | show |
| Series | Bug fixes for ice | expand |
> -----Original Message----- > From: Intel-wired-lan [mailto:intel-wired-lan-bounces@osuosl.org] On > Behalf Of Anirudh Venkataramanan > Sent: Thursday, August 9, 2018 6:29 AM > To: intel-wired-lan@lists.osuosl.org > Subject: [Intel-wired-lan] [PATCH v4 10/13] ice: Fix a few null pointer > dereference issues > > 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> > --- > drivers/net/ethernet/intel/ice/ice_common.c | 2 +- > drivers/net/ethernet/intel/ice/ice_main.c | 17 ++++++++++------- > 2 files changed, 11 insertions(+), 8 deletions(-) Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index d5300b606d5a..ebd701ac9428 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -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; diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 34be94a30a60..d5d83c8848f8 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -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)
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> --- drivers/net/ethernet/intel/ice/ice_common.c | 2 +- drivers/net/ethernet/intel/ice/ice_main.c | 17 ++++++++++------- 2 files changed, 11 insertions(+), 8 deletions(-)