wifi: cfg80211: sme: hold wiphy lock for wdev iteration

Since we will want to remove the wdev lock in the future,
lock the wiphy here to iterate and for checking the status
of the connections.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 53ba46f85cebb0f3067e31f06490bc2550acd42c..c271f30b58fa6a6f98511dd7251a246dd0b85b3d 100644 (file)
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -703,6 +703,7 @@ static bool cfg80211_is_all_idle(void)
         * as chan dfs state, etc.
         */
        for_each_rdev(rdev) {
+               wiphy_lock(&rdev->wiphy);
                list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
                        wdev_lock(wdev);
                        if (wdev->conn || wdev->connected ||
@@ -710,6 +711,7 @@ static bool cfg80211_is_all_idle(void)
                                is_all_idle = false;
                        wdev_unlock(wdev);
                }
+               wiphy_unlock(&rdev->wiphy);
        }
 
        return is_all_idle;