6.18-stable review patch. If anyone has any objections, please let me know.
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From: Haotian Zhang vulab@iscas.ac.cn
[ Upstream commit 384150d7a5b60c1086790a8ee07b0629f906cca2 ]
The clock obtained via devm_clk_get_enabled() is automatically managed by devres and will be disabled and freed on driver detach. Manually calling clk_disable_unprepare() in error path and remove function causes double free.
Remove the redundant clk_disable_unprepare() calls from the probe error path and aml_rtc_remove(), allowing the devm framework to automatically manage the clock lifecycle.
Fixes: c89ac9182ee2 ("rtc: support for the Amlogic on-chip RTC") Signed-off-by: Haotian Zhang vulab@iscas.ac.cn Reviewed-by: Xianwei Zhao xianwei.zhao@amlogic.com Link: https://patch.msgid.link/20251021103559.1903-1-vulab@iscas.ac.cn Signed-off-by: Alexandre Belloni alexandre.belloni@bootlin.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/rtc/rtc-amlogic-a4.c | 4 ---- 1 file changed, 4 deletions(-)
diff --git a/drivers/rtc/rtc-amlogic-a4.c b/drivers/rtc/rtc-amlogic-a4.c index 1928b29c10454..a993d35e1d6b0 100644 --- a/drivers/rtc/rtc-amlogic-a4.c +++ b/drivers/rtc/rtc-amlogic-a4.c @@ -390,7 +390,6 @@ static int aml_rtc_probe(struct platform_device *pdev)
return 0; err_clk: - clk_disable_unprepare(rtc->sys_clk); device_init_wakeup(dev, false);
return ret; @@ -423,9 +422,6 @@ static SIMPLE_DEV_PM_OPS(aml_rtc_pm_ops,
static void aml_rtc_remove(struct platform_device *pdev) { - struct aml_rtc_data *rtc = dev_get_drvdata(&pdev->dev); - - clk_disable_unprepare(rtc->sys_clk); device_init_wakeup(&pdev->dev, false); }