diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2015-03-23 15:08:14 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2015-03-30 10:40:03 +0200 |
| commit | 45fd63293a214c48d6d3856bb39cf207a805dfda (patch) | |
| tree | 95ac3231e1712190dfc607114546093827046f65 /net/mac80211 | |
| parent | mac80211: Fix misplaced return in AES-GMAC key setup (diff) | |
| download | linux-45fd63293a214c48d6d3856bb39cf207a805dfda.tar.xz linux-45fd63293a214c48d6d3856bb39cf207a805dfda.zip | |
mac80111: aes_ccm: cleanup ieee80211_aes_key_setup_encrypt()
This code is written using an anti-pattern called "success handling"
which makes it hard to read, especially if you are used to normal kernel
style. It should instead be written as a list of directives in a row
with branches for error handling.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/aes_ccm.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c index 7869bb40acaa..208df7c0b6ea 100644 --- a/net/mac80211/aes_ccm.c +++ b/net/mac80211/aes_ccm.c @@ -85,11 +85,15 @@ struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[], return tfm; err = crypto_aead_setkey(tfm, key, key_len); - if (!err) - err = crypto_aead_setauthsize(tfm, mic_len); - if (!err) - return tfm; + if (err) + goto free_aead; + err = crypto_aead_setauthsize(tfm, mic_len); + if (err) + goto free_aead; + + return tfm; +free_aead: crypto_free_aead(tfm); return ERR_PTR(err); } |