Commits
Hans de Goede committed 6e78c74f62e
usb: kbd: On a "usb reset" call usb_kbd_deregister() before calling usb_stop() We need to call usb_kbd_deregister() before calling usb_stop(). usbkbd's stdio_dev->priv points to the usb_device, and usb_kbd_testc dereferences usb_device->privptr. usb_stop zeros usb_device, leaving usb_device->privptr NULL, causing bad things (tm) to happen once control returns to the main loop and usb_kbd_testc gets called. Calling usb_kbd_deregister() avoids this. Note that we do not allow the "usb reset" to continue when the deregister fails. This will be fixed in a later patch. For the same reasons always fail "usb stop" if the usb_kbd_deregister() fails, even in the force path. This can happen when CONFIG_SYS_STDIO_DEREGISTER is not set. Signed-off-by: Hans de Goede <hdegoede@redhat.com>