| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.13 064/266] clk: tegra: tegra124-emc: Fix clock imbalance in emc_set_timing() | Date | Thu, 15 Jul 2021 20:36:59 +0200 |
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From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit f13570e7e830ca4fbf4869015af8492b8918445e ]
After calling clk_prepare_enable(), clk_disable_unprepare() needs be called when prepare_timing_change() failed.
Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 bdf6f4a51617..74c1d894cca8 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); -- 2.30.2
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