[PATCH 3.2 111/140] cfg80211: fix station info handling bugs

Ben Hutchings
2018-02-28T17:29:09Z

From: Johannes Berg <johannes.berg@intel.com>

commit 5762d7d3eda25c03cc2d9d45227be3f5ab6bec9e upstream.

Fix two places where the structure isn't initialized to zero,
and thus can't be filled properly by the driver.

Fixes: 4a4b8169501b ("cfg80211: Accept multiple RSSI thresholds for CQM")
Fixes: 9930380f0bd8 ("cfg80211: implement IWRATE")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.2:
- Drop change in cfg80211_cqm_rssi_update()
- Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -1265,8 +1265,7 @@ static int cfg80211_wext_giwrate(struct
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- /* we are under RTNL - globally locked - so can use a static struct */
- static struct station_info sinfo;
+ struct station_info sinfo = {};
u8 addr[ETH_ALEN];
int err;