From 9f9e0fc008f7178e39cc1be3a2efa2aa7ae331a5 Mon Sep 17 00:00:00 2001
From: jakubovsky <milosz.jakubowski@gmail.com>
Date: Tue, 3 Jul 2012 16:47:11 +0200
Subject: [PATCH] Fixed mbus_recv_frame() return value to -1 when invalid m-bus
 handle

---
 mbus/mbus-protocol-aux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mbus/mbus-protocol-aux.c b/mbus/mbus-protocol-aux.c
index fa06bb5..ccdb04f 100755
--- a/mbus/mbus-protocol-aux.c
+++ b/mbus/mbus-protocol-aux.c
@@ -1386,7 +1386,7 @@ mbus_recv_frame(mbus_handle * handle, mbus_frame *frame)
     if (handle == NULL)
     {
         MBUS_ERROR("%s: Invalid M-Bus handle for receive.\n", __PRETTY_FUNCTION__);
-        return 0;
+        return -1;
     }
 
     if (handle->is_serial)