On 2019-03-18, at 10:57:49 +0000, Colin King wrote:
> The range check on auth_type is redundant as there is a prior
> check on the auth_type values and the only way the block is entered
> is if auth_type is one of TYPE_PMK1, TYPE_GMK1 and TYPE_GMK1.

"... and TYPE_GMK2."

> Hence the auth_type check can be removed.
>
> Detected by static analysis with cppcheck.
>
> Signed-off-by: Colin Ian King <colin.k...@canonical.com>
> ---
>  drivers/staging/ks7010/ks_hostif.c | 16 +++++++---------
>  1 file changed, 7 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/staging/ks7010/ks_hostif.c
> b/drivers/staging/ks7010/ks_hostif.c
> index 06ebea0be118..31a536791d5c 100644
> --- a/drivers/staging/ks7010/ks_hostif.c
> +++ b/drivers/staging/ks7010/ks_hostif.c
> @@ -362,6 +362,8 @@ int hostif_data_indication_wpa(struct
> ks_wlan_private *priv,
>            (auth_type == TYPE_GMK2 &&
>             priv->wpa.group_suite == IW_AUTH_CIPHER_TKIP)) &&
>           key->key_len) {
> +             int ret;
> +
>               netdev_dbg(priv->net_dev, "TKIP: protocol=%04X: size=%u\n",
>                          eth_proto, priv->rx_size);
>               /* MIC save */
> @@ -369,15 +371,11 @@ int hostif_data_indication_wpa(struct
> ks_wlan_private *priv,
>                      (priv->rxp) + ((priv->rx_size) - sizeof(recv_mic)),
>                      sizeof(recv_mic));
>               priv->rx_size = priv->rx_size - sizeof(recv_mic);
> -             if (auth_type > 0 && auth_type < 4) {   /* auth_type check */
> -                     int ret;
> -
> -                     ret = michael_mic(key->rx_mic_key,
> -                                       priv->rxp, priv->rx_size,
> -                                       0, mic);
> -                     if (ret < 0)
> -                             return ret;
> -             }
> +
> +             ret = michael_mic(key->rx_mic_key, priv->rxp, priv->rx_size,
> +                               0, mic);
> +             if (ret < 0)
> +                     return ret;
>               if (memcmp(mic, recv_mic, sizeof(mic)) != 0) {
>                       now = jiffies;
>                       mic_failure = &priv->wpa.mic_failure;

Acked-by: Jeremy Sowden <jer...@azazel.net>
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