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Date: Mon, 18 Jan 2016 14:28:50 +0000 From: Lee Jones <lee.jones@...aro.org> To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Cc: kernel@...inux.com, maxime.coquelin@...com, mturquette@...libre.com, sboyd@...eaurora.org, maxime.ripard@...e-electrons.com, s.hauer@...gutronix.de, geert@...ux-m68k.org, Lee Jones <lee.jones@...aro.org> Subject: [PATCH 2/3] clk: WARN_ON about to disable a critical clock Signed-off-by: Lee Jones <lee.jones@...aro.org> --- drivers/clk/clk.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 835cb85..178b364 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; -- 1.9.1
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