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
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