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Date: Thu, 11 Feb 2016 13:19:10 -0800 From: Michael Turquette <mturquette@...libre.com> To: linux-clk@...r.kernel.org Cc: lee.jones@...aro.org, sboyd@...eaurora.org, maxime.ripard@...e-electrons.com, maxime.coquelin@...com, geert@...ux-m68k.org, heiko@...ech.de, andre.przywara@....com, rklein@...dia.com, linux-kernel@...r.kernel.org, Michael Turquette <mturquette@...libre.com> Subject: [PATCH v42 2/6] clk: WARN_ON about to disable a critical clock From: Lee Jones <lee.jones@...aro.org> Signed-off-by: Lee Jones <lee.jones@...aro.org> Signed-off-by: Michael Turquette <mturquette@...libre.com> --- drivers/clk/clk.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 993f775..39f9527 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -575,6 +575,9 @@ static void clk_core_unprepare(struct clk_core *core) if (WARN_ON(core->prepare_count == 0)) return; + if (WARN_ON(core->prepare_count == 1 && core->flags & CLK_IS_CRITICAL)) + return; + if (--core->prepare_count > 0) return; @@ -680,6 +683,9 @@ static void clk_core_disable(struct clk_core *core) if (WARN_ON(core->enable_count == 0)) return; + if (WARN_ON(core->enable_count == 1 && core->flags & CLK_IS_CRITICAL)) + return; + if (--core->enable_count > 0) return; -- 2.1.4
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