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Input: do not try to filter out events if handler is not a filter

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If given input handler is not a filter there is no point is iterating list
of events in a packet to see if some of them need to be filtered out.

Signed-off-by: Anshul Garg <anshul.g@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Anshul Garg 2015-01-08 13:47:37 -08:00 committed by Dmitry Torokhov
parent 5ab1714570
commit 2c50ad340c
1 changed files with 14 additions and 10 deletions
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14
drivers/input/input.c
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@ -100,23 +100,24 @@ static unsigned int input_to_handler(struct input_handle *handle,
struct input_value *end = vals;
struct input_value *v;
if (handler->filter) {
for (v = vals; v != vals + count; v++) {
if (handler->filter &&
handler->filter(handle, v->type, v->code, v->value))
if (handler->filter(handle, v->type, v->code, v->value))
continue;
if (end != v)
*end = *v;
end++;
}
count = end - vals;
}
if (!count)
return 0;
if (handler->events)
handler->events(handle, vals, count);
else if (handler->event)
for (v = vals; v != end; v++)
for (v = vals; v != vals + count; v++)
handler->event(handle, v->type, v->code, v->value);
return count;
@ -143,8 +144,11 @@ static void input_pass_values(struct input_dev *dev,
count = input_to_handler(handle, vals, count);
} else {
list_for_each_entry_rcu(handle, &dev->h_list, d_node)
if (handle->open)
if (handle->open) {
count = input_to_handler(handle, vals, count);
if (!count)
break;
}
}
rcu_read_unlock();