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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-24 13:13:57 +08:00

mwifiex: do not declare wdev as pointer

wdev is used even after del_virtual_interface handler in cfg80211
in nl80211_post_doit. Since we have freed wdev in handling of
del_virtual_intf, this can result into crash while deleting
interface.
Avoid this be not declaring wdev which part of
mwifiex_private structure but struct wireless_dev type.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Avinash Patil 2015-01-28 15:42:00 +05:30 committed by Kalle Valo
parent 09f63ae65f
commit 4facc34a1f
12 changed files with 44 additions and 63 deletions

View File

@ -39,7 +39,7 @@ mwifiex_11h_process_infra_join(struct mwifiex_private *priv, u8 **buffer,
return;
radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
sband = priv->wdev->wiphy->bands[radio_type];
sband = priv->wdev.wiphy->bands[radio_type];
cap = (struct mwifiex_ie_types_pwr_capability *)*buffer;
cap->header.type = cpu_to_le16(WLAN_EID_PWR_CAPABILITY);

View File

@ -39,7 +39,7 @@ int mwifiex_fill_cap_info(struct mwifiex_private *priv, u8 radio_type,
{
uint16_t ht_ext_cap = le16_to_cpu(ht_cap->extended_ht_cap_info);
struct ieee80211_supported_band *sband =
priv->wdev->wiphy->bands[radio_type];
priv->wdev.wiphy->bands[radio_type];
if (WARN_ON_ONCE(!sband)) {
dev_err(priv->adapter->dev, "Invalid radio type!\n");
@ -314,7 +314,7 @@ mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
return ret_len;
radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
sband = priv->wdev->wiphy->bands[radio_type];
sband = priv->wdev.wiphy->bands[radio_type];
if (bss_desc->bcn_ht_cap) {
ht_cap = (struct mwifiex_ie_types_htcap *) *buffer;

View File

@ -45,7 +45,7 @@ static int mwifiex_11n_dispatch_amsdu_pkt(struct mwifiex_private *priv,
skb_trim(skb, le16_to_cpu(local_rx_pd->rx_pkt_length));
ieee80211_amsdu_to_8023s(skb, &list, priv->curr_addr,
priv->wdev->iftype, 0, false);
priv->wdev.iftype, 0, false);
while (!skb_queue_empty(&list)) {
rx_skb = __skb_dequeue(&list);

View File

@ -1590,15 +1590,15 @@ static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
chan = __ieee80211_get_channel(priv->wdev->wiphy,
chan = __ieee80211_get_channel(priv->wdev.wiphy,
ieee80211_channel_to_frequency(bss_info.bss_chan,
band));
bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
CFG80211_BSS_FTYPE_UNKNOWN,
bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
0, ie_buf, ie_len, 0, GFP_KERNEL);
cfg80211_put_bss(priv->wdev->wiphy, bss);
cfg80211_put_bss(priv->wdev.wiphy, bss);
memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
return 0;
@ -1719,12 +1719,12 @@ done:
/* Find the BSS we want using available scan results */
if (mode == NL80211_IFTYPE_ADHOC)
bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
bssid, ssid, ssid_len,
WLAN_CAPABILITY_IBSS,
WLAN_CAPABILITY_IBSS);
else
bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
bssid, ssid, ssid_len,
WLAN_CAPABILITY_ESS,
WLAN_CAPABILITY_ESS);
@ -1781,7 +1781,7 @@ mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
return -EINVAL;
}
if (priv->wdev && priv->wdev->current_bss) {
if (priv->wdev.current_bss) {
wiphy_warn(wiphy, "%s: already connected\n", dev->name);
return -EALREADY;
}
@ -1839,7 +1839,7 @@ mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
struct cfg80211_ibss_params *params)
{
struct wiphy *wiphy = priv->wdev->wiphy;
struct wiphy *wiphy = priv->wdev.wiphy;
struct mwifiex_adapter *adapter = priv->adapter;
int index = 0, i;
u8 config_bands = 0;
@ -2177,7 +2177,6 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
struct mwifiex_private *priv;
struct net_device *dev;
void *mdev_priv;
struct wireless_dev *wdev;
if (!adapter)
return ERR_PTR(-EFAULT);
@ -2193,13 +2192,8 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
return ERR_PTR(-EINVAL);
}
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!wdev)
return ERR_PTR(-ENOMEM);
wdev->wiphy = wiphy;
priv->wdev = wdev;
wdev->iftype = NL80211_IFTYPE_STATION;
priv->wdev.wiphy = wiphy;
priv->wdev.iftype = NL80211_IFTYPE_STATION;
if (type == NL80211_IFTYPE_UNSPECIFIED)
priv->bss_mode = NL80211_IFTYPE_STATION;
@ -2221,13 +2215,8 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
return ERR_PTR(-EINVAL);
}
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!wdev)
return ERR_PTR(-ENOMEM);
priv->wdev = wdev;
wdev->wiphy = wiphy;
wdev->iftype = NL80211_IFTYPE_AP;
priv->wdev.wiphy = wiphy;
priv->wdev.iftype = NL80211_IFTYPE_AP;
priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
@ -2246,17 +2235,12 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
return ERR_PTR(-EINVAL);
}
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!wdev)
return ERR_PTR(-ENOMEM);
priv->wdev = wdev;
wdev->wiphy = wiphy;
priv->wdev.wiphy = wiphy;
/* At start-up, wpa_supplicant tries to change the interface
* to NL80211_IFTYPE_STATION if it is not managed mode.
*/
wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
/* Setting bss_type to P2P tells firmware that this interface
@ -2272,8 +2256,9 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
priv->bss_num = 0;
if (mwifiex_cfg80211_init_p2p_client(priv)) {
wdev = ERR_PTR(-EFAULT);
goto done;
memset(&priv->wdev, 0, sizeof(priv->wdev));
priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
return ERR_PTR(-EFAULT);
}
break;
@ -2287,9 +2272,10 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
IEEE80211_NUM_ACS, 1);
if (!dev) {
wiphy_err(wiphy, "no memory available for netdevice\n");
memset(&priv->wdev, 0, sizeof(priv->wdev));
priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
wdev = ERR_PTR(-ENOMEM);
goto done;
return ERR_PTR(-ENOMEM);
}
mwifiex_init_priv_params(priv, dev);
@ -2309,7 +2295,7 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
&wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
dev_net_set(dev, wiphy_net(wiphy));
dev->ieee80211_ptr = priv->wdev;
dev->ieee80211_ptr = &priv->wdev;
dev->ieee80211_ptr->iftype = priv->bss_mode;
memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
@ -2330,8 +2316,9 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
free_netdev(dev);
priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
priv->netdev = NULL;
wdev = ERR_PTR(-EFAULT);
goto done;
memset(&priv->wdev, 0, sizeof(priv->wdev));
priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
return ERR_PTR(-EFAULT);
}
sema_init(&priv->async_sem, 1);
@ -2342,13 +2329,7 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
mwifiex_dev_debugfs_init(priv);
#endif
done:
if (IS_ERR(wdev)) {
kfree(priv->wdev);
priv->wdev = NULL;
}
return wdev;
return &priv->wdev;
}
EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
@ -2374,8 +2355,7 @@ int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
/* Clear the priv in adapter */
priv->netdev->ieee80211_ptr = NULL;
priv->netdev = NULL;
kfree(wdev);
priv->wdev = NULL;
priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
priv->media_connected = false;

View File

@ -322,9 +322,9 @@ mwifiex_get_cfp(struct mwifiex_private *priv, u8 band, u16 channel, u32 freq)
return cfp;
if (mwifiex_band_to_radio_type(band) == HostCmd_SCAN_RADIO_TYPE_BG)
sband = priv->wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
sband = priv->wdev.wiphy->bands[IEEE80211_BAND_2GHZ];
else
sband = priv->wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
sband = priv->wdev.wiphy->bands[IEEE80211_BAND_5GHZ];
if (!sband) {
dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d\n",

View File

@ -1203,8 +1203,9 @@ int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem)
continue;
rtnl_lock();
if (priv->wdev && priv->netdev)
mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev);
if (priv->netdev &&
priv->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED)
mwifiex_del_virtual_intf(adapter->wiphy, &priv->wdev);
rtnl_unlock();
}

View File

@ -547,7 +547,7 @@ struct mwifiex_private {
u32 curr_bcn_size;
/* spin lock for beacon buffer */
spinlock_t curr_bcn_buf_lock;
struct wireless_dev *wdev;
struct wireless_dev wdev;
struct mwifiex_chan_freq_power cfp;
char version_str[128];
#ifdef CONFIG_DEBUG_FS

View File

@ -496,10 +496,10 @@ mwifiex_scan_create_channel_list(struct mwifiex_private *priv,
for (band = 0; (band < IEEE80211_NUM_BANDS) ; band++) {
if (!priv->wdev->wiphy->bands[band])
if (!priv->wdev.wiphy->bands[band])
continue;
sband = priv->wdev->wiphy->bands[band];
sband = priv->wdev.wiphy->bands[band];
for (i = 0; (i < sband->n_channels) ; i++) {
ch = &sband->channels[i];
@ -1733,10 +1733,10 @@ mwifiex_parse_single_response_buf(struct mwifiex_private *priv, u8 **bss_info,
freq = cfp ? cfp->freq : 0;
chan = ieee80211_get_channel(priv->wdev->wiphy, freq);
chan = ieee80211_get_channel(priv->wdev.wiphy, freq);
if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
bss = cfg80211_inform_bss(priv->wdev->wiphy,
bss = cfg80211_inform_bss(priv->wdev.wiphy,
chan, CFG80211_BSS_FTYPE_UNKNOWN,
bssid, timestamp,
cap_info_bitmap, beacon_period,
@ -1748,7 +1748,7 @@ mwifiex_parse_single_response_buf(struct mwifiex_private *priv, u8 **bss_info,
!memcmp(bssid, priv->curr_bss_params.bss_descriptor
.mac_address, ETH_ALEN))
mwifiex_update_curr_bss_params(priv, bss);
cfg80211_put_bss(priv->wdev->wiphy, bss);
cfg80211_put_bss(priv->wdev.wiphy, bss);
}
} else {
dev_dbg(adapter->dev, "missing BSS channel IE\n");

View File

@ -487,7 +487,7 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
case EVENT_REMAIN_ON_CHAN_EXPIRED:
dev_dbg(adapter->dev, "event: Remain on channel expired\n");
cfg80211_remain_on_channel_expired(priv->wdev,
cfg80211_remain_on_channel_expired(&priv->wdev,
priv->roc_cfg.cookie,
&priv->roc_cfg.chan,
GFP_ATOMIC);

View File

@ -219,7 +219,7 @@ static int mwifiex_process_country_ie(struct mwifiex_private *priv,
if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) {
rcu_read_unlock();
wiphy_dbg(priv->wdev->wiphy,
wiphy_dbg(priv->wdev.wiphy,
"11D: skip setting domain info in FW\n");
return 0;
}

View File

@ -227,7 +227,7 @@ void mwifiex_parse_tx_status_event(struct mwifiex_private *priv,
/* consumes ack_skb */
skb_complete_wifi_ack(ack_skb, !tx_status->status);
} else {
cfg80211_mgmt_tx_status(priv->wdev, tx_info->cookie,
cfg80211_mgmt_tx_status(&priv->wdev, tx_info->cookie,
ack_skb->data, ack_skb->len,
!tx_status->status, GFP_ATOMIC);
dev_kfree_skb_any(ack_skb);

View File

@ -387,7 +387,7 @@ mwifiex_process_mgmt_packet(struct mwifiex_private *priv,
pkt_len -= ETH_ALEN + sizeof(pkt_len);
rx_pd->rx_pkt_length = cpu_to_le16(pkt_len);
cfg80211_rx_mgmt(priv->wdev, priv->roc_cfg.chan.center_freq,
cfg80211_rx_mgmt(&priv->wdev, priv->roc_cfg.chan.center_freq,
CAL_RSSI(rx_pd->snr, rx_pd->nf), skb->data, pkt_len,
0);