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Fix attach/detach methods

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- Initialize lock before starting worker process
- Do not hold lock when destroying evdev. By that time ther should be no
    other active code pathes that can access softc
This commit is contained in:
Oleksandr Tymoshenko 2016-10-03 01:07:06 +00:00
parent 6c968f71f7
commit 19de549b41
1 changed files with 4 additions and 3 deletions
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7
sys/arm/broadcom/bcm2835/bcm2835_ft5406.c
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@ -288,13 +288,13 @@ ft5406ts_attach(device_t dev)
sc->sc_init_hook.ich_func = ft5406ts_init;
sc->sc_init_hook.ich_arg = sc;
FT5406_LOCK_INIT(sc);
if (config_intrhook_establish(&sc->sc_init_hook) != 0) {
device_printf(dev, "config_intrhook_establish failed\n");
return (ENOMEM);
}
FT5406_LOCK_INIT(sc);
return (0);
}
@ -308,10 +308,11 @@ ft5406ts_detach(device_t dev)
FT5406_LOCK(sc);
if (sc->sc_worker)
sc->sc_detaching = 1;
wakeup(sc);
FT5406_UNLOCK(sc);
if (sc->sc_evdev)
evdev_free(sc->sc_evdev);
FT5406_UNLOCK(sc);
FT5406_LOCK_DESTROY(sc);