Raise IOError exception when fopen fails about adafruit-beaglebone-io-python HOT 3 CLOSED

 source/common.c |    5 +++--
 source/py_adc.c |    8 ++++----
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/source/common.c b/source/common.c
index a5b6e3d..9d6dbec 100644
--- a/source/common.c
+++ b/source/common.c
@@ -339,7 +339,8 @@ int load_device_tree(const char *name)

     file = fopen(slots, "r+");
     if (!file) {
-        return -1;
+        PyErr_SetFromErrnoWithFilename(PyExc_IOError, slots);
+        return 0;
     }

     while (fgets(line, sizeof(line), file)) {
@@ -392,4 +393,4 @@ int unload_device_tree(const char *name)
     fclose(file);

     return 1;
-}
\ No newline at end of file
+}
diff --git a/source/py_adc.c b/source/py_adc.c
index ccdb742..d208ef9 100644
--- a/source/py_adc.c
+++ b/source/py_adc.c
@@ -38,9 +38,9 @@ static PyObject *py_cleanup(PyObject *self, PyObject *args)
 // python function setup()
 static PyObject *py_setup_adc(PyObject *self, PyObject *args)
 {
-    adc_setup();
-
-    Py_RETURN_NONE;
+    if (adc_setup())
+        Py_RETURN_NONE;
+    return NULL;
 }

 // python function read(channel)
@@ -152,4 +152,4 @@ PyMODINIT_FUNC initADC(void)
 #else
     return;
 #endif
-}
\ No newline at end of file
+}
-- 
1.7.10.4