On Fri, Mar 31, 2017 at 02:20:27PM +0200, Hans Verkuil wrote:
> +struct cec_notifier *cec_notifier_get(struct device *dev)
> +{
> + struct cec_notifier *n;
> +
> + mutex_lock(&cec_notifiers_lock);
> + list_for_each_entry(n, &cec_notifiers, head) {
> + if (n->dev == dev) {
> + mutex_unlock(&cec_notifiers_lock);
> + kref_get(&n->kref);
Isn't this racy? What stops one thread trying to get the notifier
while another thread puts the notifier?
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