nl80211: Fix potential memory leak from parse_acl_data

If parse_acl_data succeeds but the subsequent parsing of smps
attributes fails, there will be a memory leak due to early returns.
Fix that by moving the ACL parsing later.

Cc: [e-mail]
Fixes: 18998c381b19b ("cfg80211: allow requesting SMPS mode on ap start")
Signed-off-by: Ola Olsson <[e-mail]>
Signed-off-by: Johannes Berg <[e-mail]>

net/wireless/nl80211.c

···
 					   wdev->iftype))
 		return -EINVAL;
 
-	if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
-		params.acl = parse_acl_data(&rdev->wiphy, info);
-		if (IS_ERR(params.acl))
-			return PTR_ERR(params.acl);
-	}
-
 	if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
 		params.smps_mode =
 			nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
···
 		}
 	} else {
 		params.smps_mode = NL80211_SMPS_OFF;
+	}
+
+	if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
+		params.acl = parse_acl_data(&rdev->wiphy, info);
+		if (IS_ERR(params.acl))
+			return PTR_ERR(params.acl);
 	}
 
 	wdev_lock(wdev);