2012-01-10 04:20:31

by Sujith Manoharan

[permalink] [raw]
Subject: [PATCH 2/4] ath6kl: Remove redundant pointer check

'params' is already used earlier and there is no point
in checking for a NULL condition again.

Signed-off-by: Sujith Manoharan <[email protected]>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 31 +++++++++++++--------------
1 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 2a166cc..cfe9cd5 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -983,6 +983,7 @@ static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
struct ath6kl *ar = ath6kl_priv(ndev);
struct ath6kl_vif *vif = netdev_priv(ndev);
struct ath6kl_key *key = NULL;
+ int seq_len;
u8 key_usage;
u8 key_type;

@@ -1011,23 +1012,21 @@ static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
else
key_usage = GROUP_USAGE;

- if (params) {
- int seq_len = params->seq_len;
- if (params->cipher == WLAN_CIPHER_SUITE_SMS4 &&
- seq_len > ATH6KL_KEY_SEQ_LEN) {
- /* Only first half of the WPI PN is configured */
- seq_len = ATH6KL_KEY_SEQ_LEN;
- }
- if (params->key_len > WLAN_MAX_KEY_LEN ||
- seq_len > sizeof(key->seq))
- return -EINVAL;
-
- key->key_len = params->key_len;
- memcpy(key->key, params->key, key->key_len);
- key->seq_len = seq_len;
- memcpy(key->seq, params->seq, key->seq_len);
- key->cipher = params->cipher;
+ seq_len = params->seq_len;
+ if (params->cipher == WLAN_CIPHER_SUITE_SMS4 &&
+ seq_len > ATH6KL_KEY_SEQ_LEN) {
+ /* Only first half of the WPI PN is configured */
+ seq_len = ATH6KL_KEY_SEQ_LEN;
}
+ if (params->key_len > WLAN_MAX_KEY_LEN ||
+ seq_len > sizeof(key->seq))
+ return -EINVAL;
+
+ key->key_len = params->key_len;
+ memcpy(key->key, params->key, key->key_len);
+ key->seq_len = seq_len;
+ memcpy(key->seq, params->seq, key->seq_len);
+ key->cipher = params->cipher;

switch (key->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
--
1.7.8.3