Fixed multiple line dereferences
Signed-off-by: Agam Kohli <agamkoh...@gmail.com>
---
drivers/staging/rtl8712/rtl871x_mlme.c | 125 ++++++++++---------------
1 file changed, 49 insertions(+), 76 deletions(-)
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c
b/drivers/staging/rtl8712/rtl871x_mlme.c
index cabdb3549a5a..a2ced1b54ab5 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -1,6 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
- * rtl871x_mlme.c
*
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
* Linux device driver for RTL8192SU
@@ -124,7 +123,6 @@ static void free_network_nolock(struct mlme_priv *pmlmepriv,
pmlmepriv->num_of_scanned--;
}
-
/* return the wlan_network with the matching addr
* Shall be called under atomic context...
* to avoid possible racing condition...
@@ -140,13 +138,13 @@ static struct wlan_network *r8712_find_network(struct
__queue *scanned_queue,
return NULL;
spin_lock_irqsave(&scanned_queue->lock, irqL);
phead = &scanned_queue->queue;
- plist = phead->next;
- while (plist != phead) {
- pnetwork = container_of(plist, struct wlan_network, list);
- plist = plist->next;
+ list_for_each(plist, phead) {
+ pnetwork = list_entry(plist, struct wlan_network, list);
if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
break;
}
+ if (plist == phead)
+ pnetwork = NULL;
spin_unlock_irqrestore(&scanned_queue->lock, irqL);
return pnetwork;
}
@@ -249,8 +247,8 @@ static int is_same_network(struct wlan_bssid_ex *src,
src->Ssid.SsidLength))) &&
((s_cap & WLAN_CAPABILITY_IBSS) ==
(d_cap & WLAN_CAPABILITY_IBSS)) &&
- ((s_cap & WLAN_CAPABILITY_BSS) ==
- (d_cap & WLAN_CAPABILITY_BSS));
+ ((s_cap & WLAN_CAPABILITY_ESS) ==
+ (d_cap & WLAN_CAPABILITY_ESS));
}
@@ -264,13 +262,13 @@ struct wlan_network *r8712_get_oldest_wlan_network(
phead = &scanned_queue->queue;
plist = phead->next;
while (1) {
- if (end_of_queue_search(phead, plist) == true)
+ if (end_of_queue_search(phead, plist))
break;
pwlan = container_of(plist, struct wlan_network, list);
- if (pwlan->fixed != true) {
- if (oldest == NULL ||
+ if (!pwlan->fixed) {
+ if (!oldest ||
time_after((unsigned long)oldest->last_scanned,
- (unsigned long)pwlan->last_scanned))
+ (unsigned long)pwlan->last_scanned))
oldest = pwlan;
}
plist = plist->next;
@@ -358,7 +356,6 @@ static void update_scanned_network(struct _adapter *adapter,
plist = plist->next;
}
-
/* If we didn't find a match, then get a new network slot to initialize
* with this beacon's information
*/
@@ -433,8 +430,7 @@ static int is_desired_network(struct _adapter *adapter,
bselected = false;
if (check_fwstate(&adapter->mlmepriv, WIFI_ADHOC_STATE)) {
if (pnetwork->network.InfrastructureMode !=
- adapter->mlmepriv.cur_network.network.
- InfrastructureMode)
+
adapter->mlmepriv.cur_network.network.InfrastructureMode)
bselected = false;
}
return bselected;
@@ -541,8 +537,7 @@ void r8712_surveydone_event_callback(struct _adapter
*adapter, u8 *pbuf)
struct wlan_bssid_ex *pdev_network =
&(adapter->registrypriv.dev_network);
u8 *pibss =
- adapter->registrypriv.
- dev_network.MacAddress;
+
adapter->registrypriv.dev_network.MacAddress;
pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;
memcpy(&pdev_network->Ssid,
&pmlmepriv->assoc_ssid,
@@ -621,7 +616,6 @@ void r8712_indicate_connect(struct _adapter *padapter)
jiffies + msecs_to_jiffies(60000));
}
-
/*
* r8712_ind_disconnect: the caller has to lock pmlmepriv->lock
*/
@@ -691,11 +685,9 @@ void r8712_joinbss_event_callback(struct _adapter
*adapter, u8 *pbuf)
pnetwork->network.Configuration.DSConfig =
le32_to_cpu(pnetwork->network.Configuration.DSConfig);
pnetwork->network.Configuration.FHConfig.DwellTime =
- le32_to_cpu(pnetwork->network.Configuration.FHConfig.
- DwellTime);
+
le32_to_cpu(pnetwork->network.Configuration.FHConfig.DwellTime);
pnetwork->network.Configuration.FHConfig.HopPattern =
- le32_to_cpu(pnetwork->network.Configuration.
- FHConfig.HopPattern);
+
le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopPattern);
pnetwork->network.Configuration.FHConfig.HopSet =
le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopSet);
pnetwork->network.Configuration.FHConfig.Length =
@@ -720,41 +712,35 @@ void r8712_joinbss_event_callback(struct _adapter
*adapter, u8 *pbuf)
if (check_fwstate(pmlmepriv, _FW_LINKED)) {
if (the_same_macaddr) {
ptarget_wlan =
- r8712_find_network(&pmlmepriv->
- scanned_queue,
+
r8712_find_network(&pmlmepriv->scanned_queue,
cur_network->network.MacAddress);
} else {
pcur_wlan =
- r8712_find_network(&pmlmepriv->
- scanned_queue,
+
r8712_find_network(&pmlmepriv->scanned_queue,
cur_network->network.MacAddress);
- pcur_wlan->fixed = false;
+ if (pcur_wlan)
+ pcur_wlan->fixed = false;
pcur_sta = r8712_get_stainfo(pstapriv,
cur_network->network.MacAddress);
- spin_lock_irqsave(&pstapriv->
- sta_hash_lock, irqL2);
+
spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL2);
r8712_free_stainfo(adapter, pcur_sta);
- spin_unlock_irqrestore(&(pstapriv->
- sta_hash_lock), irqL2);
+
spin_unlock_irqrestore(&(pstapriv->sta_hash_lock), irqL2);
ptarget_wlan =
- r8712_find_network(&pmlmepriv->
- scanned_queue,
- pnetwork->network.
- MacAddress);
+
r8712_find_network(&pmlmepriv->scanned_queue,
+ pnetwork->network.MacAddress);
if (ptarget_wlan)
ptarget_wlan->fixed = true;
}
} else {
- ptarget_wlan = r8712_find_network(&pmlmepriv->
- scanned_queue,
+ ptarget_wlan =
r8712_find_network(&pmlmepriv->scanned_queue,
pnetwork->network.MacAddress);
if (ptarget_wlan)
ptarget_wlan->fixed = true;
}
- if (ptarget_wlan == NULL) {
+ if (!ptarget_wlan) {
if (check_fwstate(pmlmepriv,
_FW_UNDER_LINKING))
pmlmepriv->fw_state ^=
@@ -768,7 +754,7 @@ void r8712_joinbss_event_callback(struct _adapter *adapter,
u8 *pbuf)
ptarget_sta =
r8712_get_stainfo(pstapriv,
pnetwork->network.MacAddress);
- if (ptarget_sta == NULL)
+ if (!ptarget_sta)
ptarget_sta =
r8712_alloc_stainfo(pstapriv,
pnetwork->network.MacAddress);
@@ -781,39 +767,29 @@ void r8712_joinbss_event_callback(struct _adapter
*adapter, u8 *pbuf)
ptarget_sta->aid = pnetwork->join_res;
ptarget_sta->qos_option = 1;
ptarget_sta->mac_id = 5;
- if (adapter->securitypriv.
- AuthAlgrthm == 2) {
- adapter->securitypriv.
- binstallGrpkey =
+ if (adapter->securitypriv.AuthAlgrthm
== 2) {
+
adapter->securitypriv.binstallGrpkey =
false;
- adapter->securitypriv.
- busetkipkey =
+
adapter->securitypriv.busetkipkey =
false;
- adapter->securitypriv.
- bgrpkey_handshake =
+
adapter->securitypriv.bgrpkey_handshake =
false;
ptarget_sta->ieee8021x_blocked
= true;
ptarget_sta->XPrivacy =
- adapter->securitypriv.
- PrivacyAlgrthm;
- memset((u8 *)&ptarget_sta->
- x_UncstKey,
+ adapter->securitypriv.
PrivacyAlgrthm;
+ memset((u8
*)&ptarget_sta->x_UncstKey,
0,
sizeof(union Keytype));
- memset((u8 *)&ptarget_sta->
- tkiprxmickey,
+ memset((u8
*)&ptarget_sta->tkiprxmickey,
0,
sizeof(union Keytype));
- memset((u8 *)&ptarget_sta->
- tkiptxmickey,
+ memset((u8
*)&ptarget_sta->tkiptxmickey,
0,
sizeof(union Keytype));
- memset((u8 *)&ptarget_sta->
- txpn, 0,
+ memset((u8
*)&ptarget_sta->txpn, 0,
sizeof(union pn48));
- memset((u8 *)&ptarget_sta->
- rxpn, 0,
+ memset((u8
*)&ptarget_sta->rxpn, 0,
sizeof(union pn48));
}
} else {
@@ -879,7 +855,7 @@ void r8712_stassoc_event_callback(struct _adapter *adapter,
u8 *pbuf)
if (!r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr))
return;
psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
- if (psta != NULL) {
+ if (psta) {
/*the sta have been in sta_info_queue => do nothing
*(between drv has received this event before and
* fw have not yet to set key to CAM_ENTRY)
@@ -888,7 +864,7 @@ void r8712_stassoc_event_callback(struct _adapter *adapter,
u8 *pbuf)
}
psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
- if (psta == NULL)
+ if (!psta)
return;
/* to do : init sta_info variable */
psta->qos_option = 0;
@@ -944,8 +920,7 @@ void r8712_stadel_event_callback(struct _adapter *adapter,
u8 *pbuf)
pdev_network = &(adapter->registrypriv.dev_network);
pibss = adapter->registrypriv.dev_network.MacAddress;
memcpy(pdev_network, &tgt_network->network,
- r8712_get_wlan_bssid_ex_sz(&tgt_network->
- network));
+
r8712_get_wlan_bssid_ex_sz(&tgt_network->network));
memcpy(&pdev_network->Ssid,
&pmlmepriv->assoc_ssid,
sizeof(struct ndis_802_11_ssid));
@@ -1080,8 +1055,7 @@ int r8712_select_and_join_from_scan(struct mlme_priv
*pmlmepriv)
pmlmepriv->pscanned = phead->next;
while (1) {
if (end_of_queue_search(phead, pmlmepriv->pscanned)) {
- if ((pmlmepriv->assoc_by_rssi) &&
- (pnetwork_max_rssi != NULL)) {
+ if (pmlmepriv->assoc_by_rssi && pnetwork_max_rssi) {
pnetwork = pnetwork_max_rssi;
goto ask_for_joinbss;
}
@@ -1095,8 +1069,7 @@ int r8712_select_and_join_from_scan(struct mlme_priv
*pmlmepriv)
src_ssid = pmlmepriv->assoc_bssid;
if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
if (check_fwstate(pmlmepriv, _FW_LINKED)) {
- if (is_same_network(&pmlmepriv->
- cur_network.network,
+ if
(is_same_network(&pmlmepriv->cur_network.network,
&pnetwork->network)) {
_clr_fwstate_(pmlmepriv,
_FW_UNDER_LINKING);
@@ -1650,25 +1623,25 @@ unsigned int r8712_restructure_ht_ie(struct _adapter
*padapter, u8 *in_ie,
struct ht_priv *phtpriv = &pmlmepriv->htpriv;
phtpriv->ht_option = 0;
- p = r8712_get_ie(in_ie + 12, _HT_CAPABILITY_IE_, &ielen, in_len - 12);
+ p = r8712_get_ie(in_ie + 12, WLAN_EID_HT_CAPABILITY, &ielen, in_len -
12);
if (p && (ielen > 0)) {
if (pqospriv->qos_option == 0) {
out_len = *pout_len;
- r8712_set_ie(out_ie + out_len, _VENDOR_SPECIFIC_IE_,
+ r8712_set_ie(out_ie + out_len, WLAN_EID_VENDOR_SPECIFIC,
_WMM_IE_Length_, WMM_IE, pout_len);
pqospriv->qos_option = 1;
}
out_len = *pout_len;
memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
- ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH |
+ ht_capie.cap_info =
cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_SGI_40 |
IEEE80211_HT_CAP_TX_STBC |
IEEE80211_HT_CAP_MAX_AMSDU |
IEEE80211_HT_CAP_DSSSCCK40);
- ht_capie.ampdu_params_info = (IEEE80211_HT_CAP_AMPDU_FACTOR &
- 0x03) | (IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00);
- r8712_set_ie(out_ie + out_len, _HT_CAPABILITY_IE_,
+ ht_capie.ampdu_params_info = (IEEE80211_HT_AMPDU_PARM_FACTOR &
+ 0x03) | (IEEE80211_HT_AMPDU_PARM_DENSITY &
0x00);
+ r8712_set_ie(out_ie + out_len, WLAN_EID_HT_CAPABILITY,
sizeof(struct ieee80211_ht_cap),
(unsigned char *)&ht_capie, pout_len);
phtpriv->ht_option = 1;
@@ -1699,13 +1672,13 @@ static void update_ht_cap(struct _adapter *padapter, u8
*pie, uint ie_len)
/*check Max Rx A-MPDU Size*/
len = 0;
p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
- _HT_CAPABILITY_IE_,
+ WLAN_EID_HT_CAPABILITY,
&len, ie_len -
sizeof(struct NDIS_802_11_FIXED_IEs));
if (p && len > 0) {
pht_capie = (struct ieee80211_ht_cap *)(p + 2);
max_ampdu_sz = (pht_capie->ampdu_params_info &
- IEEE80211_HT_CAP_AMPDU_FACTOR);
+ IEEE80211_HT_AMPDU_PARM_FACTOR);
/* max_ampdu_sz (kbytes); */
max_ampdu_sz = 1 << (max_ampdu_sz + 3);
phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
@@ -1734,7 +1707,7 @@ static void update_ht_cap(struct _adapter *padapter, u8
*pie, uint ie_len)
}
len = 0;
p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
- _HT_ADD_INFO_IE_, &len,
+ WLAN_EID_HT_OPERATION, &len,
ie_len - sizeof(struct NDIS_802_11_FIXED_IEs));
}
--
2.34.1
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