1 files changed, 13 insertions, 6 deletions

diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index b33efc4fc267..b9007f80cb92 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -163,8 +163,7 @@ struct rate_control_ref *rate_control_alloc(const char *name,
 #ifdef CONFIG_MAC80211_DEBUGFS
         debugfsdir = debugfs_create_dir("rc", local->hw.wiphy->debugfsdir);
         local->debugfs.rcdir = debugfsdir;
-        local->debugfs.rcname = debugfs_create_file("name", 0400, debugfsdir,
-                                                    ref, &rcname_ops);
+        debugfs_create_file("name", 0400, debugfsdir, ref, &rcname_ops);
 #endif
 
         ref->priv = ref->ops->alloc(&local->hw, debugfsdir);
@@ -188,9 +187,7 @@ static void rate_control_release(struct kref *kref)
         ctrl_ref->ops->free(ctrl_ref->priv);
 
 #ifdef CONFIG_MAC80211_DEBUGFS
-        debugfs_remove(ctrl_ref->local->debugfs.rcname);
-        ctrl_ref->local->debugfs.rcname = NULL;
-        debugfs_remove(ctrl_ref->local->debugfs.rcdir);
+        debugfs_remove_recursive(ctrl_ref->local->debugfs.rcdir);
         ctrl_ref->local->debugfs.rcdir = NULL;
 #endif
 
@@ -287,9 +284,16 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
         struct rate_control_ref *ref, *old;
 
         ASSERT_RTNL();
+
         if (local->open_count)
                 return -EBUSY;
 
+        if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
+                if (WARN_ON(!local->ops->set_rts_threshold))
+                        return -EINVAL;
+                return 0;
+        }
+
         ref = rate_control_alloc(name, local);
         if (!ref) {
                 printk(KERN_WARNING "%s: Failed to select rate control "
@@ -308,7 +312,6 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
                "algorithm '%s'\n", wiphy_name(local->hw.wiphy),
                ref->ops->name);
 
-
         return 0;
 }
 
@@ -317,6 +320,10 @@ void rate_control_deinitialize(struct ieee80211_local *local)
         struct rate_control_ref *ref;
 
         ref = local->rate_ctrl;
+
+        if (!ref)
+                return;
+
         local->rate_ctrl = NULL;
         rate_control_put(ref);
 }