From f13570e7e830ca4fbf4869015af8492b8918445e Mon Sep 17 00:00:00 2001 From: Yang Yingliang Date: Tue, 18 May 2021 12:42:47 +0800 Subject: [PATCH] clk: tegra: tegra124-emc: Fix clock imbalance in emc_set_timing() After calling clk_prepare_enable(), clk_disable_unprepare() needs be called when prepare_timing_change() failed. Reported-by: Hulk Robot Signed-off-by: Yang Yingliang Signed-off-by: Thierry Reding --- drivers/clk/tegra/clk-tegra124-emc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/clk/tegra/clk-tegra124-emc.c b/drivers/clk/tegra/clk-tegra124-emc.c index bdf6f4a..74c1d89 100644 --- a/drivers/clk/tegra/clk-tegra124-emc.c +++ b/drivers/clk/tegra/clk-tegra124-emc.c @@ -249,8 +249,10 @@ static int emc_set_timing(struct tegra_clk_emc *tegra, div = timing->parent_rate / (timing->rate / 2) - 2; err = tegra->prepare_timing_change(emc, timing->rate); - if (err) + if (err) { + clk_disable_unprepare(timing->parent); return err; + } spin_lock_irqsave(tegra->lock, flags); -- 2.7.4