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cpufreq: tegra20: Release clocks properly

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Properly put requested clocks in the module init/exit code.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dmitry Osipenko 2018-05-18 23:06:36 +03:00 committed by Rafael J. Wysocki
parent 9b633cb621
commit 64cd64e72b
1 changed files with 26 additions and 5 deletions
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31
drivers/cpufreq/tegra20-cpufreq.c
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@ -161,24 +161,45 @@ static struct cpufreq_driver tegra_cpufreq_driver = {
static int __init tegra_cpufreq_init(void)
{
int err;
cpu_clk = clk_get_sys(NULL, "cclk");
if (IS_ERR(cpu_clk))
return PTR_ERR(cpu_clk);
pll_x_clk = clk_get_sys(NULL, "pll_x");
if (IS_ERR(pll_x_clk))
return PTR_ERR(pll_x_clk);
if (IS_ERR(pll_x_clk)) {
err = PTR_ERR(pll_x_clk);
goto put_cpu;
}
pll_p_clk = clk_get_sys(NULL, "pll_p");
if (IS_ERR(pll_p_clk))
return PTR_ERR(pll_p_clk);
if (IS_ERR(pll_p_clk)) {
err = PTR_ERR(pll_p_clk);
goto put_pll_x;
}
return cpufreq_register_driver(&tegra_cpufreq_driver);
err = cpufreq_register_driver(&tegra_cpufreq_driver);
if (err)
goto put_pll_p;
return 0;
put_pll_p:
clk_put(pll_p_clk);
put_pll_x:
clk_put(pll_x_clk);
put_cpu:
clk_put(cpu_clk);
return err;
}
static void __exit tegra_cpufreq_exit(void)
{
cpufreq_unregister_driver(&tegra_cpufreq_driver);
clk_put(pll_p_clk);
clk_put(pll_x_clk);
clk_put(cpu_clk);
}