Re: [PATCH v9 05/13] coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable
Leo Yan <[email protected]>
| Newsgroups | org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
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 <[email protected]>
> Signed-off-by: Yeoreum Yun <[email protected]>
Reviewed-by: Leo Yan <[email protected]>