[media] firedtv: fix remote control with newer Xorg evdev

After a recent update of xf86-input-evdev and xorg-server, I noticed
that X11 applications did not receive keypresses from the FireDTV
infrared remote control anymore. Instead, the Xorg log featured lots of

"FireDTV remote control: dropping event due to full queue!"

exclamations. The Linux console did not have an issue with the
FireDTV's RC though.

The fix is to insert EV_SYN events after the key-down/-up events.

Signed-off-by: Stefan Richter <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/dvb/firewire/firedtv-rc.c

···
 
 void fdtv_handle_rc(struct firedtv *fdtv, unsigned int code)
 {
-	u16 *keycode = fdtv->remote_ctrl_dev->keycode;
+	struct input_dev *idev = fdtv->remote_ctrl_dev;
+	u16 *keycode = idev->keycode;
 
 	if (code >= 0x0300 && code <= 0x031f)
 		code = keycode[code - 0x0300];
···
 		return;
 	}
 
-	input_report_key(fdtv->remote_ctrl_dev, code, 1);
-	input_report_key(fdtv->remote_ctrl_dev, code, 0);
+	input_report_key(idev, code, 1);
+	input_sync(idev);
+	input_report_key(idev, code, 0);
+	input_sync(idev);
 }