cfg80211: do not pass -EALREADY to userspace on regdomain change request
If the regulatory domain is already set it is technically not an error
so do not pass an errno to userspace.
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 09a5d0f..e69da8d 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1908,6 +1908,11 @@
mutex_lock(&cfg80211_drv_mutex);
r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data, 0, ENVIRON_ANY);
mutex_unlock(&cfg80211_drv_mutex);
+ /* This means the regulatory domain was already set, however
+ * we don't want to confuse userspace with a "successful error"
+ * message so lets just treat it as a success */
+ if (r == -EALREADY)
+ r = 0;
return r;
}