On 12/22/2015 02:05 PM, Tomas Winkler wrote:
> Do you see a situation where holding the lock between calls into the driver
> might be a problem ?
I don't think u are holding the lock now in watchdog_unregister when
WDOG_UNREGISTERED was dropped.
the lock is held while clearing the pointers:
mutex_lock(&wd_data->lock);
wd_data->wdd = NULL;
wdd->wd_data = NULL;
mutex_unlock(&wd_data->lock);
Guenter
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