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Change History

In the Linux kernel, the following vulnerability has been resolved:

rtc: amlogic-a4: fix double free caused by devm

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.

https://git.kernel.org/stable/c/2e1c79299036614ac32b251d145fad5391f4bcab

https://git.kernel.org/stable/c/384150d7a5b60c1086790a8ee07b0629f906cca2

https://git.kernel.org/stable/c/9fed02c16488050cd4e33e045506336b216d7301