From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Michael Turquette To: linux-clk@vger.kernel.org Cc: lee.jones@linaro.org, sboyd@codeaurora.org, maxime.ripard@free-electrons.com, maxime.coquelin@st.com, geert@linux-m68k.org, heiko@sntech.de, andre.przywara@arm.com, rklein@nvidia.com, linux-kernel@vger.kernel.org, Michael Turquette Subject: [PATCH v42 2/6] clk: WARN_ON about to disable a critical clock Date: Thu, 11 Feb 2016 13:19:10 -0800 Message-Id: <1455225554-13267-3-git-send-email-mturquette@baylibre.com> In-Reply-To: <1455225554-13267-1-git-send-email-mturquette@baylibre.com> References: <1455225554-13267-1-git-send-email-mturquette@baylibre.com> List-ID: From: Lee Jones Signed-off-by: Lee Jones Signed-off-by: Michael Turquette --- 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