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authorEliad Peller <eliad@wizery.com>2015-12-16 15:45:45 +0200
committerJohannes Berg <johannes.berg@intel.com>2016-01-14 11:10:16 +0100
commitb9f628fcc673ba582cc7a17c4fd9be01133e61bd (patch)
tree7eaf77fbbd68affb1b9c22201776e33ce04c6c6a /net/mac80211
parent470f4d613b51806e15e055428234a04a99f076fc (diff)
mac80211: clear local->sched_scan_req properly on reconfig
On reconfig, in case of sched_scan_req->n_scan_plans > 1, local->sched_scan_req was never cleared, although cfg80211_sched_scan_stopped_rtnl() was called, resulting in local->sched_scan_req holding a stale and preventing further scheduled scan requests. Clear it explicitly in this case. Fixes: 42a7e82c6792 ("mac80211: Do not restart scheduled scan if multiple scan plans are set") Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/util.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 4f6e0b79ef69..58f58bd5202f 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2043,8 +2043,11 @@ int ieee80211_reconfig(struct ieee80211_local *local)
*/
if (sched_scan_req->n_scan_plans > 1 ||
__ieee80211_request_sched_scan_start(sched_scan_sdata,
- sched_scan_req))
+ sched_scan_req)) {
+ RCU_INIT_POINTER(local->sched_scan_sdata, NULL);
+ RCU_INIT_POINTER(local->sched_scan_req, NULL);
sched_scan_stopped = true;
+ }
mutex_unlock(&local->mtx);
if (sched_scan_stopped)