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authorBen Hutchings <ben@decadent.org.uk>2010-08-01 17:37:03 +0100
committerJohn W. Linville <linville@tuxdriver.com>2010-08-16 15:26:38 -0400
commit1ac62ba7c985109868a18d959986425148481f47 (patch)
tree35504e08e075978f7dcdd791bdfa2fab132b778a /net/mac80211/aes_cmac.c
parenta85d7cca1204f2dba86d2f61693f0fe8c48f0fa5 (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/aes_cmac.c')
-rw-r--r--net/mac80211/aes_cmac.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/net/mac80211/aes_cmac.c b/net/mac80211/aes_cmac.c
index 3d097b3d7b6..b4d66cca76d 100644
--- a/net/mac80211/aes_cmac.c
+++ b/net/mac80211/aes_cmac.c
@@ -119,10 +119,8 @@ struct crypto_cipher * ieee80211_aes_cmac_key_setup(const u8 key[])
struct crypto_cipher *tfm;
tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
- if (IS_ERR(tfm))
- return NULL;
-
- crypto_cipher_setkey(tfm, key, AES_CMAC_KEY_LEN);
+ if (!IS_ERR(tfm))
+ crypto_cipher_setkey(tfm, key, AES_CMAC_KEY_LEN);
return tfm;
}