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| author | Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> | 2018-08-09 06:29:00 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-08-23 11:28:56 -0700 |
| commit | c7f2c42b80ed6009f44e355aefc1e40db9485a9d (patch) | |
| tree | a45b97e5aaadd3db57b82becfbc06294f289d680 /drivers/net | |
| parent | 3bcd7fa37f33cda8c5639a908e9eb42d856e5d8b (diff) | |
| download | linux-c7f2c42b80ed6009f44e355aefc1e40db9485a9d.tar.gz linux-c7f2c42b80ed6009f44e355aefc1e40db9485a9d.tar.bz2 linux-c7f2c42b80ed6009f44e355aefc1e40db9485a9d.zip | |
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>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_main.c | 17 |
2 files changed, 11 insertions, 8 deletions
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) |