• Alan Stern's avatar
    usbcore: fix up device and power state tests · 114b368c
    Alan Stern authored
    This patch (as734) rationalizes the various tests of device state and
    power states.  There are duplications and mistaken tests in several
    places.
    
    Perhaps the most interesting challenge is where the hub driver tests to
    see that all the child devices are suspended before allowing itself to
    be suspended.  When CONFIG_USB_SUSPEND is set the test is
    straightforward, since we expect that the children _will_ be suspended.
    But when CONFIG_USB_SUSPEND isn't set, it's not so clear what should be
    done.  The code compromises by checking the child's
    power.power_state.event field.
    Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
    114b368c
generic.c 5.89 KB