• Benjamin Berg's avatar
    aes3k: Fix cancellation logic of aes3k driver · bcce8876
    Benjamin Berg authored
    The change_state function is called synchronously from the
    image_captured callback. This means that deactivation of the device
    happens during the img_cb function, causing the USB transfer to be
    re-registered even though the device is already deactivating.
    There are various ways to fix this, but it makes sense to directly bind
    the cancellation to the deactivation. So create a cancellable that we
    cancel at deactivation time, and make sure we always deactivate by going
    through cancellation.
    closes: #306
aes3k.c 6.71 KB