re: drivers/platform/x86/sony-laptop.c: fix scancodes

[Dan Carpenter <dan.carpenter@oracle.com>]

Hi John,

Commit 04840b50f395 "drivers/platform/x86/sony-laptop.c: fix scancodes"
introduces a gcc warning:

drivers/platform/x86/sony-laptop.c:395:14: warning:
	‘scancode’ may be used uninitialized in this function [-Wuninitialized]

   345  static void sony_laptop_report_input_event(u8 event)
   346  {
   347          struct input_dev *jog_dev = sony_laptop_input.jog_dev;
   348          struct input_dev *key_dev = sony_laptop_input.key_dev;
   349          struct sony_laptop_keypress kp = { NULL };
   350          int scancode;
   351  

-- [snip] --

   373          /* key_dev events */
   374          case SONYPI_EVENT_JOGDIAL_PRESSED:
   375                  kp.key = BTN_MIDDLE;
   376                  kp.dev = jog_dev;
   377                  break;

scancode doesn't get initialized on this path, but kp.dev is set.

   378  
   379          default:
   380                  if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
   381                          dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
   382                          break;
   383                  }
   384                  scancode = sony_laptop_input_index[event];
   385                  if (scancode != -1) {
   386                          kp.key = sony_laptop_input_keycode_map[scancode];
   387                          if (kp.key != KEY_UNKNOWN)
   388                                  kp.dev = key_dev;
   389                  }
   390                  break;
   391          }
   392  
   393          if (kp.dev) {
   394                  /* we emit the scancode so we can always remap the key */
   395                  input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);

We use scancode here.

regards,
dan carpenter