1 files changed, 28 insertions, 11 deletions

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index c565689f0b9f..3332d5bce317 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -63,6 +63,10 @@ static struct regulatory_request *last_request;
 /* To trigger userspace events */
 static struct platform_device *reg_pdev;
 
+static struct device_type reg_device_type = {
+	.uevent = reg_device_uevent,
+};
+
 /*
  * Central wireless core regulatory domains, we only need two,
  * the current one and a world regulatory domain in case we have no
@@ -362,16 +366,11 @@ static inline void reg_regdb_query(const char *alpha2) {}
 
 /*
  * This lets us keep regulatory code which is updated on a regulatory
- * basis in userspace.
+ * basis in userspace. Country information is filled in by
+ * reg_device_uevent
  */
 static int call_crda(const char *alpha2)
 {
-	char country_env[9 + 2] = "COUNTRY=";
-	char *envp[] = {
-		country_env,
-		NULL
-	};
-
 	if (!is_world_regdom((char *) alpha2))
 		pr_info("Calling CRDA for country: %c%c\n",
 			alpha2[0], alpha2[1]);
@@ -381,10 +380,7 @@ static int call_crda(const char *alpha2)
 	/* query internal regulatory database (if it exists) */
 	reg_regdb_query(alpha2);
 
-	country_env[8] = alpha2[0];
-	country_env[9] = alpha2[1];
-
-	return kobject_uevent_env(&reg_pdev->dev.kobj, KOBJ_CHANGE, envp);
+	return kobject_uevent(&reg_pdev->dev.kobj, KOBJ_CHANGE);
 }
 
 /* Used by nl80211 before kmalloc'ing our regulatory domain */
@@ -2087,6 +2083,25 @@ int set_regdom(const struct ieee80211_regdomain *rd)
 	return r;
 }
 
+#ifdef CONFIG_HOTPLUG
+int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	if (last_request && !last_request->processed) {
+		if (add_uevent_var(env, "COUNTRY=%c%c",
+				   last_request->alpha2[0],
+				   last_request->alpha2[1]))
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+#else
+int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	return -ENODEV;
+}
+#endif /* CONFIG_HOTPLUG */
+
 /* Caller must hold cfg80211_mutex */
 void reg_device_remove(struct wiphy *wiphy)
 {
@@ -2118,6 +2133,8 @@ int __init regulatory_init(void)
 	if (IS_ERR(reg_pdev))
 		return PTR_ERR(reg_pdev);
 
+	reg_pdev->dev.type = &reg_device_type;
+
 	spin_lock_init(&reg_requests_lock);
 	spin_lock_init(&reg_pending_beacons_lock);