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-rw-r--r--net/mac80211/ibss.c4
-rw-r--r--net/mac80211/tx.c4
-rw-r--r--net/mac80211/util.c12
-rw-r--r--net/wireless/mlme.c13
-rw-r--r--net/wireless/scan.c13
5 files changed, 41 insertions, 5 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 10d13856f86c..1f2db647bb5c 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -382,6 +382,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
u8 *bssid,u8 *addr, u32 supp_rates)
{
+ struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
int band = local->hw.conf.channel->band;
@@ -397,6 +398,9 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
return NULL;
}
+ if (ifibss->state == IEEE80211_IBSS_MLME_SEARCH)
+ return NULL;
+
if (compare_ether_addr(bssid, sdata->u.ibss.bssid))
return NULL;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 8834cc93c716..27ceaefd7bc8 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1419,6 +1419,10 @@ static bool need_dynamic_ps(struct ieee80211_local *local)
if (!local->ps_sdata)
return false;
+ /* No point if we're going to suspend */
+ if (local->quiescing)
+ return false;
+
return true;
}
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 78a6e924c7e1..dc76267e436e 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1039,7 +1039,19 @@ int ieee80211_reconfig(struct ieee80211_local *local)
/* restart hardware */
if (local->open_count) {
+ /*
+ * Upon resume hardware can sometimes be goofy due to
+ * various platform / driver / bus issues, so restarting
+ * the device may at times not work immediately. Propagate
+ * the error.
+ */
res = drv_start(local);
+ if (res) {
+ WARN(local->suspended, "Harware became unavailable "
+ "upon resume. This is could be a software issue"
+ "prior to suspend or a harware issue\n");
+ return res;
+ }
ieee80211_led_radio(local, true);
}
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 1001db4912f7..82e6002c8d67 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -93,7 +93,18 @@ void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
}
}
- WARN_ON(!bss);
+ /*
+ * We might be coming here because the driver reported
+ * a successful association at the same time as the
+ * user requested a deauth. In that case, we will have
+ * removed the BSS from the auth_bsses list due to the
+ * deauth request when the assoc response makes it. If
+ * the two code paths acquire the lock the other way
+ * around, that's just the standard situation of a
+ * deauth being requested while connected.
+ */
+ if (!bss)
+ goto out;
} else if (wdev->conn) {
cfg80211_sme_failed_assoc(wdev);
/*
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 12dfa62aad18..0c2cbbebca95 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -601,7 +601,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
struct cfg80211_registered_device *rdev;
struct wiphy *wiphy;
struct iw_scan_req *wreq = NULL;
- struct cfg80211_scan_request *creq;
+ struct cfg80211_scan_request *creq = NULL;
int i, err, n_channels = 0;
enum ieee80211_band band;
@@ -694,8 +694,10 @@ int cfg80211_wext_siwscan(struct net_device *dev,
/* translate "Scan for SSID" request */
if (wreq) {
if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
- if (wreq->essid_len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
+ if (wreq->essid_len > IEEE80211_MAX_SSID_LEN) {
+ err = -EINVAL;
+ goto out;
+ }
memcpy(creq->ssids[0].ssid, wreq->essid, wreq->essid_len);
creq->ssids[0].ssid_len = wreq->essid_len;
}
@@ -707,12 +709,15 @@ int cfg80211_wext_siwscan(struct net_device *dev,
err = rdev->ops->scan(wiphy, dev, creq);
if (err) {
rdev->scan_req = NULL;
- kfree(creq);
+ /* creq will be freed below */
} else {
nl80211_send_scan_start(rdev, dev);
+ /* creq now owned by driver */
+ creq = NULL;
dev_hold(dev);
}
out:
+ kfree(creq);
cfg80211_unlock_rdev(rdev);
return err;
}