From 451dcbad6c1989c21c19e8800702ba14ae59f031 Mon Sep 17 00:00:00 2001
From: Noel Eck <noel.eck@intel.com>
Date: Wed, 16 Mar 2016 09:36:39 -0700
Subject: [PATCH] uart: Fix for failed malloc

Check malloc return in UART read. Throw if malloc fails.

Signed-off-by: Noel Eck <noel.eck@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
---
 api/mraa/uart.hpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/api/mraa/uart.hpp b/api/mraa/uart.hpp
index 73154ce..6f2843f 100644
--- a/api/mraa/uart.hpp
+++ b/api/mraa/uart.hpp
@@ -126,12 +126,17 @@ class Uart
      * Read bytes from the device into a String object
      *
      * @param length to read
+     * @throws std::bad_alloc If there is no space left for read.
      * @return string of data
      */
     std::string
     readStr(int length)
     {
         char* data = (char*) malloc(sizeof(char) * length);
+        if (data == NULL) {
+            throw std::bad_alloc();
+        }
+
         int v = mraa_uart_read(m_uart, data, (size_t) length);
         std::string ret(data, v);
         free(data);