[Intel-wired-lan] [PATCH net-next 2/6] ice: always check VF VSI pointer values

[Paul Menzel <pmenzel@molgen.mpg.de>]

Dear Jacob,


Thank you for the patch.

Am 12.04.22 um 01:29 schrieb Jacob Keller:
> 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.

(side note: scripts/checkpatch.pl checks for 75 characters per line, and 
you seem to use 72 characters per line.)

> Fix this by checking the return value of ice_get_vf_vsi everywhere.

I didn?t understand, when WARN_ON() is necessary, and when not, but 
looks fine.

> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
> ---
>   drivers/net/ethernet/intel/ice/ice_devlink.c  |  5 ++-
>   drivers/net/ethernet/intel/ice/ice_repr.c     |  7 +++-
>   drivers/net/ethernet/intel/ice/ice_sriov.c    | 32 +++++++++++++++++--
>   drivers/net/ethernet/intel/ice/ice_vf_lib.c   | 28 +++++++++++++++-
>   drivers/net/ethernet/intel/ice/ice_virtchnl.c |  5 +++
>   .../ethernet/intel/ice/ice_virtchnl_fdir.c    |  7 +++-
>   6 files changed, 77 insertions(+), 7 deletions(-)

[?]

Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>


Kind regards,

Paul