On 02/20/2013 10:58 AM, Manu Abraham wrote: > Hi, > > On Wed, Feb 20, 2013 at 12:28 AM, Alexey Khoroshilov > <khoroshilov@xxxxxxxxx> wrote: >> goto err and goto err_gateoff before mutex_lock(&state->internal->demod_lock) >> lead to unlock of unheld mutex in stv090x_sleep(). > Out of curiosity, what happens when you try to unlock an unlocked mutex ? > > Regards, > Manu > Bad things can happen if someone else holds the mutex and it becomes unexpectedly unlocked. Also it can result that the next lock() operation leaves the mutex in unlocked state. The both cases can lead to data races with unpredictable consequences. -- Alexey Khoroshilov -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
