Input: automatically reset KEY_RESERVED bit for all input devices

KEY_RESERVED is not supposed to be reported to userspace but rather to
mark unused entries in keymaps.

Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/input.c b/drivers/input/input.c
index ab060710688fa6064f02dabfca13dc3ef512d43e..910d7be06eff4891d58ff2d1222667547118559c 100644 (file)
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -613,12 +613,12 @@ static int input_default_setkeycode(struct input_dev *dev,
                }
        }
 
-       clear_bit(old_keycode, dev->keybit);
-       set_bit(keycode, dev->keybit);
+       __clear_bit(old_keycode, dev->keybit);
+       __set_bit(keycode, dev->keybit);
 
        for (i = 0; i < dev->keycodemax; i++) {
                if (input_fetch_keycode(dev, i) == old_keycode) {
-                       set_bit(old_keycode, dev->keybit);
+                       __set_bit(old_keycode, dev->keybit);
                        break; /* Setting the bit twice is useless, so break */
                }
        }
@@ -676,6 +676,9 @@ int input_set_keycode(struct input_dev *dev, int scancode, int keycode)
        if (retval)
                goto out;
 
+       /* Make sure KEY_RESERVED did not get enabled. */
+       __clear_bit(KEY_RESERVED, dev->keybit);
+
        /*
         * Simulate keyup event if keycode is not present
         * in the keymap anymore
@@ -1513,13 +1516,16 @@ int input_register_device(struct input_dev *dev)
        const char *path;
        int error;
 
+       /* Every input device generates EV_SYN/SYN_REPORT events. */
        __set_bit(EV_SYN, dev->evbit);
 
+       /* KEY_RESERVED is not supposed to be transmitted to userspace. */
+       __clear_bit(KEY_RESERVED, dev->keybit);
+
        /*
         * If delay and period are pre-set by the driver, then autorepeating
         * is handled by the driver itself and we don't do it in input.c.
         */
-
        init_timer(&dev->timer);
        if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD]) {
                dev->timer.data = (long) dev;