From 370d43d1b33f31ff29e41193c564c2b4e45db329 Mon Sep 17 00:00:00 2001
From: Jon Trulson <jtrulson@ics.com>
Date: Tue, 25 Oct 2016 16:43:33 -0600
Subject: [PATCH] gp2y0a: test for NULL alloc and clear allocated memory

Signed-off-by: Jon Trulson <jtrulson@ics.com>
---
 src/gp2y0a/gp2y0a.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/gp2y0a/gp2y0a.c b/src/gp2y0a/gp2y0a.c
index 0ab080fb..318da1d9 100644
--- a/src/gp2y0a/gp2y0a.c
+++ b/src/gp2y0a/gp2y0a.c
@@ -33,8 +33,17 @@ gp2y0a_context gp2y0a_init(uint8_t pin, float a_ref){
         return NULL;
     }
 
-    gp2y0a_context dev = (gp2y0a_context) malloc(sizeof(struct _gp2y0a_context));
+    gp2y0a_context dev =
+        (gp2y0a_context) malloc(sizeof(struct _gp2y0a_context));
 
+    if (!dev)
+    {
+        printf("%s: device context allocation failed (%d).\n",
+               __FUNCTION__, mraa_rv);
+        return NULL;
+    }
+
+    memset((void *)dev, 0, sizeof(struct _gp2y0a_context));
     dev->pin = pin;
     dev->aio = mraa_aio_init(dev->pin);
     if(dev->aio == NULL){