diff options
| author | Ben Hutchings <ben@decadent.org.uk> | 2010-08-01 17:37:03 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-08-16 15:26:38 -0400 |
| commit | 1ac62ba7c985109868a18d959986425148481f47 (patch) | |
| tree | 35504e08e075978f7dcdd791bdfa2fab132b778a /net/mac80211/key.c | |
| parent | a85d7cca1204f2dba86d2f61693f0fe8c48f0fa5 (diff) | |
mac80211: Don't squash error codes in key setup functions
ieee80211_add_key() currently returns -ENOMEM in case of any error,
including a missing crypto algorithm. Change ieee80211_key_alloc()
and ieee80211_aes_{key_setup_encrypt,cmac_key_setup}() to encode
errors with ERR_PTR() rather than returning NULL, and change
ieee80211_add_key() accordingly.
Compile-tested only.
Reported-by: Marcin Owsiany <porridge@debian.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/key.c')
| -rw-r--r-- | net/mac80211/key.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 1b9d87ed143..d6dbc8ea4ea 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -234,13 +234,13 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg, size_t seq_len, const u8 *seq) { struct ieee80211_key *key; - int i, j; + int i, j, err; BUG_ON(idx < 0 || idx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS); key = kzalloc(sizeof(struct ieee80211_key) + key_len, GFP_KERNEL); if (!key) - return NULL; + return ERR_PTR(-ENOMEM); /* * Default to software encryption; we'll later upload the @@ -296,9 +296,10 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg, * it does not need to be initialized for every packet. */ key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(key_data); - if (!key->u.ccmp.tfm) { + if (IS_ERR(key->u.ccmp.tfm)) { + err = PTR_ERR(key->u.ccmp.tfm); kfree(key); - return NULL; + key = ERR_PTR(err); } } @@ -309,9 +310,10 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg, */ key->u.aes_cmac.tfm = ieee80211_aes_cmac_key_setup(key_data); - if (!key->u.aes_cmac.tfm) { + if (IS_ERR(key->u.aes_cmac.tfm)) { + err = PTR_ERR(key->u.aes_cmac.tfm); kfree(key); - return NULL; + key = ERR_PTR(err); } } |