wifi: nl80211: acquire wdev mutex earlier in start_ap

We need to hold the wdev mutex already in order to call
nl80211_parse_tx_bitrate_mask(), so acquire it earlier.

Fixes: 7b0a0e3c ("wifi: cfg80211: do some rework towards MLO link APIs")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/wireless/nl80211.c

@@ -5771,18 +5771,20 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
+	wdev_lock(wdev);
+
 	if (info->attrs[NL80211_ATTR_TX_RATES]) {
 		err = nl80211_parse_tx_bitrate_mask(info, info->attrs,
 						    NL80211_ATTR_TX_RATES,
 						    &params->beacon_rate,
 						    dev, false, link_id);
 		if (err)
-			goto out;
+			goto out_unlock;
 
 		err = validate_beacon_tx_rate(rdev, params->chandef.chan->band,
 					      &params->beacon_rate);
 		if (err)
-			goto out;
+			goto out_unlock;
 	}
 
 	if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
@@ -5795,19 +5797,19 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 			if (!(rdev->wiphy.features &
 			      NL80211_FEATURE_STATIC_SMPS)) {
 				err = -EINVAL;
-				goto out;
+				goto out_unlock;
 			}
 			break;
 		case NL80211_SMPS_DYNAMIC:
 			if (!(rdev->wiphy.features &
 			      NL80211_FEATURE_DYNAMIC_SMPS)) {
 				err = -EINVAL;
-				goto out;
+				goto out_unlock;
 			}
 			break;
 		default:
 			err = -EINVAL;
-			goto out;
+			goto out_unlock;
 		}
 	} else {
 		params->smps_mode = NL80211_SMPS_OFF;
@@ -5816,7 +5818,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 	params->pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
 	if (params->pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
 		err = -EOPNOTSUPP;
-		goto out;
+		goto out_unlock;
 	}
 
 	if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
@@ -5824,7 +5826,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 		if (IS_ERR(params->acl)) {
 			err = PTR_ERR(params->acl);
 			params->acl = NULL;
-			goto out;
+			goto out_unlock;
 		}
 	}
 
@@ -5836,7 +5838,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 					info->attrs[NL80211_ATTR_HE_OBSS_PD],
 					&params->he_obss_pd);
 		if (err)
-			goto out;
+			goto out_unlock;
 	}
 
 	if (info->attrs[NL80211_ATTR_FILS_DISCOVERY]) {
@@ -5844,7 +5846,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 						   info->attrs[NL80211_ATTR_FILS_DISCOVERY],
 						   params);
 		if (err)
-			goto out;
+			goto out_unlock;
 	}
 
 	if (info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP]) {
@@ -5852,7 +5854,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 			rdev, info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP],
 			params);
 		if (err)
-			goto out;
+			goto out_unlock;
 	}
 
 	if (info->attrs[NL80211_ATTR_MBSSID_CONFIG]) {
@@ -5863,7 +5865,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 							params->beacon.mbssid_ies->cnt :
 							0);
 		if (err)
-			goto out;
+			goto out_unlock;
 	}
 
 	nl80211_calculate_ap_params(params);
@@ -5874,7 +5876,6 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 	else if (info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])
 		params->flags |= NL80211_AP_SETTINGS_EXTERNAL_AUTH_SUPPORT;
 
-	wdev_lock(wdev);
 	if (wdev->conn_owner_nlportid &&
 	    info->attrs[NL80211_ATTR_SOCKET_OWNER] &&
 	    wdev->conn_owner_nlportid != info->snd_portid) {