In the Linux kernel, the following vulnerability has been resolved: ASoC: da7219: Fix an error handling path in da7219registerdaiclks() If clkhwregister() fails, the corresponding clk should not be unregistered. To handle errors from loops, clean up partial iterations before doing the goto. So add a clkhw_unregister(). Then use a while (--i >= 0) loop in the unwind section.