From a7b8d4a0ca23eb4474fd3c880d7a863249c5baaa Mon Sep 17 00:00:00 2001
From: Brendan Le Foll <brendan.le.foll@intel.com>
Date: Wed, 26 Nov 2014 13:30:10 +0000
Subject: [PATCH] aio.c: check aio_get_valid_fp return value

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
---
 src/aio/aio.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/aio/aio.c b/src/aio/aio.c
index f871fbb..f728863 100644
--- a/src/aio/aio.c
+++ b/src/aio/aio.c
@@ -121,7 +121,10 @@ mraa_aio_read(mraa_aio_context dev)
     unsigned int shifter_value = 0;
 
     if (dev->adc_in_fp == -1) {
-        aio_get_valid_fp(dev);
+        if (aio_get_valid_fp(dev) != MRAA_SUCCESS) {
+            syslog(LOG_ERR, "aio: Failed to get to the device");
+            return 0;
+        }
     }
 
     lseek(dev->adc_in_fp, 0, SEEK_SET);