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>
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 52a8779..66e0fb6 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2570,15 +2570,19 @@
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 @@
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 @@
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)