From 792746f7758597142fb5e1f08de54206d68b50f4 Mon Sep 17 00:00:00 2001
From: Vladimir Zidar <mr_w@mindnever.org>
Date: Thu, 27 Apr 2017 15:44:39 +0200
Subject: [PATCH] LP-480 DSM: do not fail to initialize driver for ports
 without bind capability.

---
 flight/pios/common/pios_dsm.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/flight/pios/common/pios_dsm.c b/flight/pios/common/pios_dsm.c
index 9f66a1aff..a935e22c3 100644
--- a/flight/pios/common/pios_dsm.c
+++ b/flight/pios/common/pios_dsm.c
@@ -318,11 +318,9 @@ int32_t PIOS_DSM_Init(uint32_t *dsm_id,
 
         PIOS_DEBUG_Assert(driver->ioctl);
 
-        if ((driver->ioctl)(lower_id, PIOS_IOCTL_USART_GET_DSMBIND, &rxpin) < 0) {
-            return -1;
+        if ((driver->ioctl)(lower_id, PIOS_IOCTL_USART_GET_DSMBIND, &rxpin) == 0) {
+            PIOS_DSM_Bind(&rxpin, bind);
         }
-
-        PIOS_DSM_Bind(&rxpin, bind);
     }
 
     PIOS_DSM_ResetState(dsm_dev);