mraa.c: Do not return with error if iio devices are not detected

Signed-off-by: Henry Bruce <henry.bruce@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>

src/mraa.c

@@ -143,9 +143,8 @@ mraa_init()
     }
 #endif
 
-    mraa_result_t iio_result = mraa_iio_detect();
-    if (iio_result != MRAA_SUCCESS)
-        return iio_result;
+    // Look for IIO devices
+    mraa_iio_detect();
 
     syslog(LOG_NOTICE, "libmraa initialised for platform '%s' of type %d", mraa_get_platform_name(), mraa_get_platform_type());
     return MRAA_SUCCESS;