mac80211: clean up key freeing a bit

When a key is allocated but not really added, there's no
need to go through the entire teardown process. Also, if
adding a key fails, ieee80211_key_link() can take care of
freeing it instead of the (only) caller.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 5 insertions, 6 deletions

diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index 2a682d81cee9..8ef56cdfe3d7 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -129,14 +129,13 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
                                           size_t seq_len, const u8 *seq);
 /*
  * Insert a key into data structures (sdata, sta if necessary)
- * to make it used, free old key.
+ * to make it used, free old key. On failure, also free the new key.
  */
-int __must_check ieee80211_key_link(struct ieee80211_key *key,
-                                    struct ieee80211_sub_if_data *sdata,
-                                    struct sta_info *sta);
+int ieee80211_key_link(struct ieee80211_key *key,
+                       struct ieee80211_sub_if_data *sdata,
+                       struct sta_info *sta);
 void __ieee80211_key_free(struct ieee80211_key *key, bool delay_tailroom);
-void ieee80211_key_free(struct ieee80211_local *local,
-                        struct ieee80211_key *key);
+void ieee80211_key_free_unused(struct ieee80211_key *key);
 void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx,
                                bool uni, bool multi);
 void ieee80211_set_default_mgmt_key(struct ieee80211_sub_if_data *sdata,