diff options
| author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2009-05-13 23:04:40 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-05-20 20:46:31 +0200 |
| commit | d0e18f833d23afefb6751a21d14a2cd71d2d4d66 (patch) | |
| tree | 7a4b2772388f08d96f224f12568fd001dd25798e /net/wireless/nl80211.c | |
| parent | cfg80211: return immediately if num reg rules > NL80211_MAX_SUPP_REG_RULES (diff) | |
| download | linux-d0e18f833d23afefb6751a21d14a2cd71d2d4d66.tar.xz linux-d0e18f833d23afefb6751a21d14a2cd71d2d4d66.zip | |
cfg80211: cleanup return calls on nl80211_set_reg()
This has no functional change, but it will make the race
fix easier to spot in my next patch.
Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 52a877998ff7..66e0fb6a6420 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2570,15 +2570,19 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) return -EINVAL; } - if (!reg_is_valid_request(alpha2)) - return -EINVAL; + if (!reg_is_valid_request(alpha2)) { + r = -EINVAL; + goto bad_reg; + } size_of_regd = sizeof(struct ieee80211_regdomain) + (num_rules * sizeof(struct ieee80211_reg_rule)); rd = kzalloc(size_of_regd, GFP_KERNEL); - if (!rd) - return -ENOMEM; + if (!rd) { + r = -ENOMEM; + goto bad_reg; + } rd->n_reg_rules = num_rules; rd->alpha2[0] = alpha2[0]; @@ -2595,8 +2599,10 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) rule_idx++; - if (rule_idx > NL80211_MAX_SUPP_REG_RULES) + if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { + r = -EINVAL; goto bad_reg; + } } BUG_ON(rule_idx != num_rules); @@ -2604,11 +2610,12 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) mutex_lock(&cfg80211_mutex); r = set_regdom(rd); mutex_unlock(&cfg80211_mutex); + return r; bad_reg: kfree(rd); - return -EINVAL; + return r; } static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |