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| author | Johannes Berg <johannes.berg@intel.com> | 2022-06-20 15:29:28 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2022-07-15 11:43:13 +0200 |
| commit | 3d1cc7cdf2e848181398837fe158bf0850d29ee6 (patch) | |
| tree | 011eb80edea4ba93f06e9b2e0d3d0fc612389cff /net/wireless/nl80211.c | |
| parent | 4e2f3d67e3afef751e1ad81c6b156f2aafa25dcf (diff) | |
| download | linux-3d1cc7cdf2e848181398837fe158bf0850d29ee6.tar.bz2 | |
wifi: nl80211: hold wdev mutex for station APIs
Since this will need to refer - at least in part - to the link
stations of an MLD, hold the wdev mutex for driver convenience.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 59ea1157969e..9eee853efd57 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -6976,7 +6976,9 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) } /* driver will call cfg80211_check_station_change() */ + wdev_lock(dev->ieee80211_ptr); err = rdev_change_station(rdev, dev, mac_addr, ¶ms); + wdev_unlock(dev->ieee80211_ptr); out_put_vlan: dev_put(params.vlan); @@ -7232,7 +7234,9 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) /* be aware of params.vlan when changing code here */ + wdev_lock(dev->ieee80211_ptr); err = rdev_add_station(rdev, dev, mac_addr, ¶ms); + wdev_unlock(dev->ieee80211_ptr); dev_put(params.vlan); return err; @@ -7243,6 +7247,7 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct station_del_parameters params; + int ret; memset(¶ms, 0, sizeof(params)); @@ -7290,7 +7295,11 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID; } - return rdev_del_station(rdev, dev, ¶ms); + wdev_lock(dev->ieee80211_ptr); + ret = rdev_del_station(rdev, dev, ¶ms); + wdev_unlock(dev->ieee80211_ptr); + + return ret; } static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, |