diff options
| -rw-r--r-- | Documentation/networking/regulatory.txt | 13 | ||||
| -rw-r--r-- | include/net/wireless.h | 3 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 5 | ||||
| -rw-r--r-- | net/wireless/reg.c | 9 |
4 files changed, 10 insertions, 20 deletions
diff --git a/Documentation/networking/regulatory.txt b/Documentation/networking/regulatory.txt index a96989a8ff35..357d4ba4f135 100644 --- a/Documentation/networking/regulatory.txt +++ b/Documentation/networking/regulatory.txt @@ -167,7 +167,6 @@ struct ieee80211_regdomain mydriver_jp_regdom = { Then in some part of your code after your wiphy has been registered: - int r; struct ieee80211_regdomain *rd; int size_of_regd; int num_rules = mydriver_jp_regdom.n_reg_rules; @@ -178,17 +177,11 @@ Then in some part of your code after your wiphy has been registered: rd = kzalloc(size_of_regd, GFP_KERNEL); if (!rd) - return -ENOMEM; + return -ENOMEM; memcpy(rd, &mydriver_jp_regdom, sizeof(struct ieee80211_regdomain)); - for (i=0; i < num_rules; i++) { + for (i=0; i < num_rules; i++) memcpy(&rd->reg_rules[i], &mydriver_jp_regdom.reg_rules[i], sizeof(struct ieee80211_reg_rule)); - } - r = regulatory_hint(hw->wiphy, NULL, rd); - if (r) { - kfree(rd); - return r; - } - + return regulatory_hint(hw->wiphy, NULL, rd); diff --git a/include/net/wireless.h b/include/net/wireless.h index 061fe5017e5c..6e3ea0159045 100644 --- a/include/net/wireless.h +++ b/include/net/wireless.h @@ -358,8 +358,7 @@ ieee80211_get_channel(struct wiphy *wiphy, int freq) * for a regulatory domain structure for the respective country. If * a regulatory domain is build and passed you should set the alpha2 * if possible, otherwise set it to the special value of "99" which tells - * the wireless core it is unknown. If you pass a built regulatory domain - * and we return non zero you are in charge of kfree()'ing the structure. + * the wireless core it is unknown. * * Returns -EALREADY if *a regulatory domain* has already been set. Note that * this could be by another driver. It is safe for drivers to continue if diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 9a16e9e6c5ca..f82cc9aa6908 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1935,12 +1935,9 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) mutex_lock(&cfg80211_drv_mutex); r = set_regdom(rd); mutex_unlock(&cfg80211_drv_mutex); - if (r) - goto bad_reg; - return r; -bad_reg: + bad_reg: kfree(rd); return -EINVAL; } diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 00c326b66c03..038f8f133c54 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -605,7 +605,6 @@ int __regulatory_hint(struct wiphy *wiphy, enum reg_set_by set_by, return r; } -/* If rd is not NULL and if this call fails the caller must free it */ int regulatory_hint(struct wiphy *wiphy, const char *alpha2, struct ieee80211_regdomain *rd) { @@ -690,6 +689,7 @@ void print_regdomain_info(const struct ieee80211_regdomain *rd) print_rd_rules(rd); } +/* Takes ownership of rd only if it doesn't fail */ static int __set_regdom(const struct ieee80211_regdomain *rd) { /* Some basic sanity checks first */ @@ -750,16 +750,17 @@ static int __set_regdom(const struct ieee80211_regdomain *rd) /* Use this call to set the current regulatory domain. Conflicts with * multiple drivers can be ironed out later. Caller must've already - * kmalloc'd the rd structure. If this calls fails you should kfree() - * the passed rd. Caller must hold cfg80211_drv_mutex */ + * kmalloc'd the rd structure. Caller must hold cfg80211_drv_mutex */ int set_regdom(const struct ieee80211_regdomain *rd) { int r; /* Note that this doesn't update the wiphys, this is done below */ r = __set_regdom(rd); - if (r) + if (r) { + kfree(rd); return r; + } /* This would make this whole thing pointless */ BUG_ON(rd != cfg80211_regdomain); |