[PATCH v9 05/13] coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable
Leo Yan
leo.yan at arm.com
Tue Aug 11 09:25:57 PDT 2026
On Sat, Jul 25, 2026 at 12:36:37PM +0100, Yeoreum Yun wrote:
> In the perf enable path, there are missing cases where
> cscfg_csdev_disable_active_config() is not called:
>
> - Branch broadcast is selected but not supported by the hardware
> - etm4_enable_hw() fails
>
> This can lead to a leak of config_desc->active_cnt.
> Fix this by properly calling cscfg_csdev_disable_active_config()
> in these error paths.
>
> Fixes: 810ac401db1f ("coresight: etm4x: Add complex configuration handlers to etmv4")
> Suggested-by: Leo Yan <leo.yan at arm.com>
> Signed-off-by: Yeoreum Yun <yeoreum.yun at arm.com>
Reviewed-by: Leo Yan <leo.yan at arm.com>
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