cfg80211: make wdev_list accessible to drivers

There's no harm in having drivers read the list, since they can
use RCU protection or RTNL locking; allow this to not require
each and every driver to also implement its own bookkeeping.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index 9cee022..e46469b 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -91,7 +91,7 @@
 {
 	struct wireless_dev *wdev;
 
-	list_for_each_entry(wdev, &rdev->wdev_list, list)
+	list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list)
 		cfg80211_leave(rdev, wdev);
 }