• Stefan Richter's avatar
    firewire: nosy: fix device shutdown with active client · 424d66ce
    Stefan Richter authored
    Fix race between nosy_open() and remove_card() by replacing the
    unprotected array of card pointers by a mutex-protected list of cards.
    Make card instances reference-counted and let each client hold a
    Notify clients about card removal via POLLHUP in poll()'s events
    bitmap; also let read() fail with errno=ENODEV if the card was removed
    and everything in the buffer was read.
    Signed-off-by: default avatarStefan Richter <stefanr@s5r6.in-berlin.de>