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staging: ks7010: remove redundant auth_type check 

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_GMK2. Hence
the auth_type check can be removed.

Detected by static analysis with cppcheck.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Colin Ian King 2019-03-18 10:57:49 +00:00 committed by Greg Kroah-Hartman
parent 7f2c439642
commit 7d6009f282
1 changed files with 6 additions and 8 deletions
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14
drivers/staging/ks7010/ks_hostif.c
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@ -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;