Re: [PATCH] driver core: add wait event for deferred probe

From: Arnd Bergmann
Date: Thu Feb 14 2013 - 10:57:44 EST


On Thursday 14 February 2013, Haojian Zhuang wrote:
> If you can change it into code in below, it could work. Otherwise, it
> always fails.
> driver_deferred_probe_enable = true;
> driver_deferred_probe_trigger();
> + deferred_probe_work_func(NULL);
> return 0;
>
> Because deferred_probe_work_func() depends on that deferred_probe is added
> into deferred_probe_active_list. If driver_deferred_probe_trigger() isn't called
> first, the deferred uart probe can't be added into active list. So even you call
> work_func at here, it doesn't help.
>

Would that not cause two instances of the work function to run at the same time?
That sounds like a source for a lot of problems.

Arnd
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