--- zzzz-none-000/linux-3.10.107/net/bluetooth/lib.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/net/bluetooth/lib.c	2021-02-04 17:41:59.000000000 +0000
@@ -58,6 +58,7 @@
 		return EIO;
 
 	case 0x04:
+	case 0x3c:
 		return EHOSTDOWN;
 
 	case 0x05:
@@ -134,40 +135,66 @@
 }
 EXPORT_SYMBOL(bt_to_errno);
 
-int bt_info(const char *format, ...)
+void bt_info(const char *format, ...)
 {
 	struct va_format vaf;
 	va_list args;
-	int r;
 
 	va_start(args, format);
 
 	vaf.fmt = format;
 	vaf.va = &args;
 
-	r = pr_info("%pV", &vaf);
+	pr_info("%pV", &vaf);
 
 	va_end(args);
-
-	return r;
 }
 EXPORT_SYMBOL(bt_info);
 
-int bt_err(const char *format, ...)
+void bt_warn(const char *format, ...)
 {
 	struct va_format vaf;
 	va_list args;
-	int r;
 
 	va_start(args, format);
 
 	vaf.fmt = format;
 	vaf.va = &args;
 
-	r = pr_err("%pV", &vaf);
+	pr_warn("%pV", &vaf);
 
 	va_end(args);
+}
+EXPORT_SYMBOL(bt_warn);
 
-	return r;
+void bt_err(const char *format, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, format);
+
+	vaf.fmt = format;
+	vaf.va = &args;
+
+	pr_err("%pV", &vaf);
+
+	va_end(args);
 }
 EXPORT_SYMBOL(bt_err);
+
+void bt_err_ratelimited(const char *format, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, format);
+
+	vaf.fmt = format;
+	vaf.va = &args;
+
+	pr_err_ratelimited("%pV", &vaf);
+
+	va_end(args);
+}
+EXPORT_SYMBOL(bt_err_ratelimited);