From 57f16b5da03784d1660133fbec7281ea5735da69 Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Tue, 3 May 2011 20:11:45 -0700 Subject: [PATCH] mwifiex: fix simultaneous assoc and scan issue When scan and assoc (infra/ibss) commands are simultaneously given in two terminals, association response is erroneously served while serving the scan response. mwifiex_cfg80211_results() is the common routine for sending ioctl (scan, assoc etc.) results to cfg80211 stack. In above scenario even if the common routine is called for scan ioctl context, it also tries to send information about assoc ioctl to cfg80211 because "priv->assoc_request/priv->ibss_join_request" flag is on at that time. Fix the issue by updating request variable after assoc handling and modifying the variable check in mwifiex_cfg80211_results. Signed-off-by: Amitkumar Karwar Signed-off-by: Kiran Divekar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/cfg80211.c | 11 +++++++---- drivers/net/wireless/mwifiex/main.h | 4 ++-- 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index 98009e2194c5..77a80296b6cb 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -1044,7 +1044,7 @@ mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, goto done; } - priv->assoc_request = 1; + priv->assoc_request = -EINPROGRESS; wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n", (char *) sme->ssid, sme->bssid); @@ -1052,6 +1052,7 @@ mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, priv->bss_mode, sme->channel, sme, 0); + priv->assoc_request = 1; done: priv->assoc_result = ret; queue_work(priv->workqueue, &priv->cfg_workqueue); @@ -1080,7 +1081,7 @@ mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, goto done; } - priv->ibss_join_request = 1; + priv->ibss_join_request = -EINPROGRESS; wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n", (char *) params->ssid, params->bssid); @@ -1088,6 +1089,8 @@ mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, params->bssid, priv->bss_mode, params->channel, NULL, params->privacy); + + priv->ibss_join_request = 1; done: priv->ibss_join_result = ret; queue_work(priv->workqueue, &priv->cfg_workqueue); @@ -1380,7 +1383,7 @@ done: kfree(scan_req); } - if (priv->assoc_request) { + if (priv->assoc_request == 1) { if (!priv->assoc_result) { cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0, NULL, 0, @@ -1399,7 +1402,7 @@ done: priv->assoc_result = 0; } - if (priv->ibss_join_request) { + if (priv->ibss_join_request == 1) { if (!priv->ibss_join_result) { cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL); diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index 5043fcd22565..b4bb5ec4723e 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -479,9 +479,9 @@ struct mwifiex_private { u8 report_scan_result; struct cfg80211_scan_request *scan_request; int scan_result_status; - bool assoc_request; + int assoc_request; u16 assoc_result; - bool ibss_join_request; + int ibss_join_request; u16 ibss_join_result; bool disconnect; u8 cfg_bssid[6];