From: Pavel Rojtberg <rojtb...@gmail.com>

this changes helps understanding the code
1. rename led_no -> pad_nr: the number stored there is not the LED Nr -
it gets translated later on to a LED Nr in xpad_identify_controller
2. move all comments regarding xpad_identify_controller to the function
definition to prevent inconsistent documentation.

Signed-off-by: Pavel Rojtberg <rojtb...@gmail.com>
---
 drivers/input/joystick/xpad.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index e3b393c..ab62d47 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -345,7 +345,7 @@ struct usb_xpad {
 
        int mapping;                    /* map d-pad to buttons or to axes */
        int xtype;                      /* type of xbox device */
-       unsigned long led_no;           /* led to lit on xbox360 controllers */
+       unsigned long pad_nr;           /* the order x360 pads were attached */
 };
 
 /*
@@ -357,7 +357,6 @@ struct usb_xpad {
  *     The used report descriptor was taken from ITO Takayukis website:
  *      http://euc.jp/periphs/xbox-controller.ja.html
  */
-
 static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char 
*data)
 {
        struct input_dev *dev = xpad->dev;
@@ -506,7 +505,6 @@ static void xpad_identify_controller(struct usb_xpad *xpad);
  * 01.1 - Pad state (Bytes 4+) valid
  *
  */
-
 static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned 
char *data)
 {
        /* Presence change */
@@ -514,10 +512,6 @@ static void xpad360w_process_packet(struct usb_xpad *xpad, 
u16 cmd, unsigned cha
                if (data[1] & 0x80) {
                        xpad->pad_present = 1;
                        usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
-                       /*
-                        * Light up the segment corresponding to
-                        * controller number.
-                        */
                        xpad_identify_controller(xpad);
                } else
                        xpad->pad_present = 0;
@@ -891,6 +885,7 @@ struct xpad_led {
 };
 
 /**
+ * set the LEDs on Xbox360 / Wireless Controllers
  * @param command
  *  0: off
  *  1: all blink, then previous setting
@@ -943,10 +938,12 @@ static void xpad_send_led_command(struct usb_xpad *xpad, 
int command)
        mutex_unlock(&xpad->odata_mutex);
 }
 
+/*
+ * Light up the segment corresponding to the pad number on Xbox 360 Controllers
+ */
 static void xpad_identify_controller(struct usb_xpad *xpad)
 {
-       /* Light up the segment corresponding to controller number */
-       xpad_send_led_command(xpad, (xpad->led_no % 4) + 2);
+       xpad_send_led_command(xpad, (xpad->pad_nr % 4) + 2);
 }
 
 static void xpad_led_set(struct led_classdev *led_cdev,
@@ -972,9 +969,9 @@ static int xpad_led_probe(struct usb_xpad *xpad)
        if (!led)
                return -ENOMEM;
 
-       xpad->led_no = atomic_inc_return(&led_seq);
+       xpad->pad_nr = atomic_inc_return(&led_seq);
 
-       snprintf(led->name, sizeof(led->name), "xpad%lu", xpad->led_no);
+       snprintf(led->name, sizeof(led->name), "xpad%lu", xpad->pad_nr);
        led->xpad = xpad;
 
        led_cdev = &led->led_cdev;
@@ -988,7 +985,6 @@ static int xpad_led_probe(struct usb_xpad *xpad)
                return error;
        }
 
-       /* Light up the segment corresponding to controller number */
        xpad_identify_controller(xpad);
 
        return 0;
-- 
1.9.1

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