Re: [PATCH] Revert "leds: convert blink timer to workqueue"

From: Josh Boyer
Date: Tue Sep 02 2014 - 13:13:52 EST

On Tue, Sep 2, 2014 at 1:02 PM, Bryan Wu <cooloney@xxxxxxxxx> wrote:
> On Tue, Sep 2, 2014 at 2:03 AM, Jiri Kosina <jkosina@xxxxxxx> wrote:
>> This reverts commit 8b37e1bef5a6b60e949e28a4db3006e4b00bd758.
>> It's broken as it changes led_blink_set() in a way that it can now sleep
>> (while synchronously waiting for workqueue to be cancelled). That's a
>> problem, because it's possible that this function gets called from atomic
>> context (tpt_trig_timer() takes a readlock and thus disables preemption).
>> This has been brought up 3 weeks ago already [1] but no proper fix has
>> materialized, and I keep seeing the problem since 3.18-rc1.
> Is this 3.18-rc1? I think it should be 3.17-rc1, right?

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