Fix spidev path mismatch (#216)

Remove unnecessary call to get_spi_bus_path_number()
and use the bus and device passed to SPI_open().

Signed-off-by: Drew Fustini <drew@pdp7.com>

Author: pdp7

source/spimodule.c

@@ -703,7 +703,6 @@ static PyObject *
 SPI_open(SPI *self, PyObject *args, PyObject *kwds)
 {
 	int bus, device;
-	int bus_path;
 	int max_dt_length = 15;
 	char device_tree_name[max_dt_length];
 	char path[MAXPATH];
@@ -722,14 +721,7 @@ SPI_open(SPI *self, PyObject *args, PyObject *kwds)
 		return NULL;
 	}
 
-	bus_path = get_spi_bus_path_number(bus);
-	if (bus_path == -1) {
-		PyErr_SetString(PyExc_OverflowError,
-			"Unable to find loaded spi bus path.");
-		return NULL;
-	}
-
-	if (snprintf(path, MAXPATH, "/dev/spidev%d.%d", bus_path, device) >= MAXPATH) {
+	if (snprintf(path, MAXPATH, "/dev/spidev%d.%d", bus, device) >= MAXPATH) {
 		PyErr_SetString(PyExc_OverflowError,
 			"Bus and/or device number is invalid.");
 		return NULL;