Re: [PATCH v5 8/8] clk: fixed-rate: Convert into a module platform driver
From: Stephen Boyd
Date: Thu Oct 18 2018 - 16:24:11 EST
Quoting Alan Tull (2018-10-18 12:20:58)
> On Tue, Jul 5, 2016 at 11:45 AM Ricardo Ribalda Delgado
> <ricardo.ribalda@xxxxxxxxx> wrote:
> I've stumbled across a of_node_get/put imbalance that happens when the
> fixed rate clock is added and deleted using device tree. The cause is
> that this driver calls of_clk_add_provider() when probed, but doesn't
> call of_clk_del_provider() when removed.
> It looks like a lot of clock drivers share that issue:
> $ cd drivers/clk/
> $ git grep -l of_clk_add_provider * | xargs grep -L of_clk_del_provider | wc -l
> It should be a one line fix, but for many files.
> I'm not a clock subsystem expert, so please let me know whether I'm
> missing something here.
Patches welcome. Please include Fixes: tags for backports. Probably
drivers don't care because clk devices are almost never removed. That
isn't to say it shouldn't be fixed, but just giving some background on
why nobody has fixed it.