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authorAmitkumar Karwar <akarwar@marvell.com>2011-05-03 20:11:45 -0700
committerJohn W. Linville <linville@tuxdriver.com>2011-05-05 14:59:15 -0400
commit57f16b5da03784d1660133fbec7281ea5735da69 (patch)
tree33635aa591d5ab0332dea61cdf6f64dc6b3b0ca6
parent85e09b40405b44b049500702beb6856646b4be46 (diff)
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 <akarwar@marvell.com> Signed-off-by: Kiran Divekar <dkiran@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/mwifiex/cfg80211.c11
-rw-r--r--drivers/net/wireless/mwifiex/main.h4
2 files changed, 9 insertions, 6 deletions
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 98009e2194c..77a80296b6c 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 5043fcd2256..b4bb5ec4723 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];