From cada819c3997355d85979539aeaf9fb847225ba6 Mon Sep 17 00:00:00 2001
From: Brendan Le Foll <brendan.le.foll@intel.com>
Date: Wed, 21 Sep 2016 14:39:32 +0100
Subject: [PATCH] intel_edison_fab_c.c: don't undo muxing if we don't own the
 pin

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
---
 src/x86/intel_edison_fab_c.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/x86/intel_edison_fab_c.c b/src/x86/intel_edison_fab_c.c
index b392c17..9aca6a8 100644
--- a/src/x86/intel_edison_fab_c.c
+++ b/src/x86/intel_edison_fab_c.c
@@ -208,11 +208,14 @@ mraa_intel_edison_gpio_init_post(mraa_gpio_context dev)
 mraa_result_t
 mraa_intel_edison_gpio_close_pre(mraa_gpio_context dev)
 {
-    if (dev->phy_pin >= 0) {
-        int pin = dev->phy_pin;
-        if (agpioOutputen[pin]) {
-            mraa_gpio_close(agpioOutputen[pin]);
-            agpioOutputen[pin] = NULL;
+    // check if we own it
+    if (dev->owner != 0) {
+        if (dev->phy_pin >= 0) {
+            int pin = dev->phy_pin;
+            if (agpioOutputen[pin]) {
+                mraa_gpio_close(agpioOutputen[pin]);
+                agpioOutputen[pin] = NULL;
+            }
         }
     }
     return MRAA_SUCCESS;