diff options
| author | Jacob Keller <jacob.e.keller@intel.com> | 2022-04-11 16:29:03 -0700 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2022-05-05 11:28:36 -0700 |
| commit | baeb705fd6a7245cc1fa69ed991a9cffdf44a174 (patch) | |
| tree | a1e7573c62b525453202e0f3b443cab5e739a023 /drivers/net/ethernet/intel/ice/ice_repr.c | |
| parent | 9880d3d6f9e3ab264d58368306dd83218ea6a3c1 (diff) | |
| download | linux-stable-baeb705fd6a7245cc1fa69ed991a9cffdf44a174.tar.gz linux-stable-baeb705fd6a7245cc1fa69ed991a9cffdf44a174.tar.bz2 linux-stable-baeb705fd6a7245cc1fa69ed991a9cffdf44a174.zip | |
ice: always check VF VSI pointer values
The ice_get_vf_vsi function can return NULL in some cases, such as if
handling messages during a reset where the VSI is being removed and
recreated.
Several places throughout the driver do not bother to check whether this
VSI pointer is valid. Static analysis tools maybe report issues because
they detect paths where a potentially NULL pointer could be dereferenced.
Fix this by checking the return value of ice_get_vf_vsi everywhere.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_repr.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_repr.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_repr.c b/drivers/net/ethernet/intel/ice/ice_repr.c index 848f2adea563..a91b81c3088b 100644 --- a/drivers/net/ethernet/intel/ice/ice_repr.c +++ b/drivers/net/ethernet/intel/ice/ice_repr.c @@ -293,8 +293,13 @@ static int ice_repr_add(struct ice_vf *vf) struct ice_q_vector *q_vector; struct ice_netdev_priv *np; struct ice_repr *repr; + struct ice_vsi *vsi; int err; + vsi = ice_get_vf_vsi(vf); + if (!vsi) + return -EINVAL; + repr = kzalloc(sizeof(*repr), GFP_KERNEL); if (!repr) return -ENOMEM; @@ -313,7 +318,7 @@ static int ice_repr_add(struct ice_vf *vf) goto err_alloc; } - repr->src_vsi = ice_get_vf_vsi(vf); + repr->src_vsi = vsi; repr->vf = vf; vf->repr = repr; np = netdev_priv(repr->netdev); |