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Re: [PATCH v2] clk: let clk_disable() return immediately if clk is NULL or error

From Stephen Boyd <sboyd@codeaurora.org>
Newsgroups linux.kernel
Subject Re: [PATCH v2] clk: let clk_disable() return immediately if clk is NULL or error
Date 2016-04-16 02:10 +0200
Message-ID <rolYe-347-23@gated-at.bofh.it> (permalink)
References <rkorE-3JL-11@gated-at.bofh.it> <rlsCT-3LP-33@gated-at.bofh.it> <rltSi-4D1-3@gated-at.bofh.it> <rnDua-1rq-11@gated-at.bofh.it> <rnEzT-2bp-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 04/14, Masahiro Yamada wrote:
> 
> OK, now I notice another problem in my code;
> if foo_clk_init() fails for reason [2],
> clk_disable() WARN's due to zero enable_count.
> 
> if (WARN_ON(core->enable_count == 0))
>          return;
> 
> 
> 
> Perhaps, I got screwed up by splitting clock init stuff
> into a helper function.

Yep! Can't we just split the enable/disable out into another
function separate from the clk_get/put part? That would make
things more symmetric and avoid this problem.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

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Thread

[PATCH v2] clk: let clk_disable() return immediately if clk is NULL or error Masahiro Yamada <yamada.masahiro@socionext.com> - 2016-04-05 04:00 +0200
  Re: [PATCH v2] clk: let clk_disable() return immediately if clk is  NULL or error Stephen Boyd <sboyd@codeaurora.org> - 2016-04-08 02:40 +0200
    Re: [PATCH v2] clk: let clk_disable() return immediately if clk is  NULL or error Masahiro Yamada <yamada.masahiro@socionext.com> - 2016-04-08 04:00 +0200
      Re: [PATCH v2] clk: let clk_disable() return immediately if clk is  NULL or error Stephen Boyd <sboyd@codeaurora.org> - 2016-04-14 02:40 +0200
        Re: [PATCH v2] clk: let clk_disable() return immediately if clk is  NULL or error Masahiro Yamada <yamada.masahiro@socionext.com> - 2016-04-14 03:50 +0200
          Re: [PATCH v2] clk: let clk_disable() return immediately if clk is  NULL or error Stephen Boyd <sboyd@codeaurora.org> - 2016-04-16 02:10 +0200
    Re: [PATCH v2] clk: let clk_disable() return immediately if clk is  NULL or error Ralf Baechle <ralf@linux-mips.org> - 2016-04-08 12:30 +0200
      Re: [PATCH v2] clk: let clk_disable() return immediately if clk is  NULL or error Masahiro Yamada <yamada.masahiro@socionext.com> - 2016-04-08 13:20 +0200
      Re: [PATCH v2] clk: let clk_disable() return immediately if clk is  NULL or error Stephen Boyd <sboyd@codeaurora.org> - 2016-04-14 02:50 +0200

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