From: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
[ Upstream commit 5d8f384a9b4fc50f6a18405f1c08e5a87a77b5b3 ]
The remove function first frees the clks and only then calls
cpufreq_unregister_driver(). If one of the cpufreq callbacks is called
just before cpufreq_unregister_driver() is run, the freed clks might be
used.
Fixes: 6601b8030de3 ("davinci: add generic CPUFreq driver for DaVinci")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/cpufreq/davinci-cpufreq.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c
index d54a27c991218..3dacfc53a80da 100644
--- a/drivers/cpufreq/davinci-cpufreq.c
+++ b/drivers/cpufreq/davinci-cpufreq.c
@@ -138,12 +138,14 @@ static int __init davinci_cpufreq_probe(struct platform_device *pdev)
static int __exit davinci_cpufreq_remove(struct platform_device *pdev)
{
+ cpufreq_unregister_driver(&davinci_driver);
+
clk_put(cpufreq.armclk);
if (cpufreq.asyncclk)
clk_put(cpufreq.asyncclk);
- return cpufreq_unregister_driver(&davinci_driver);
+ return 0;
}
static struct platform_driver davinci_cpufreq_driver = {
--
2.39.2
