On Thu, 25 Sept 2025 at 16:04, Sean Anderson sean.anderson@linux.dev wrote:

If registering the CPU map fails, we need to put the fwnode. free_percpu works when called with a NULL pointer, so just use coresight_device_release.

Fixes: 5ad628a76176 ("coresight: Use per-sink trace ID maps for Perf sessions") Signed-off-by: Sean Anderson sean.anderson@linux.dev

---

(no changes since v4)

Changes in v4:

• New

drivers/hwtracing/coresight/coresight-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c index fa758cc21827..022c8384b98d 100644 --- a/drivers/hwtracing/coresight/coresight-core.c +++ b/drivers/hwtracing/coresight/coresight-core.c @@ -1352,7 +1352,7 @@ struct coresight_device *coresight_register(struct coresight_desc *desc) raw_spin_lock_init(&csdev->perf_sink_id_map.lock); csdev->perf_sink_id_map.cpu_map = alloc_percpu(atomic_t); if (!csdev->perf_sink_id_map.cpu_map) {

•                   kfree(csdev);
  

•                   coresight_device_release(&csdev->dev);
                    ret = -ENOMEM;
                    goto err_out;
            }
  

-- 2.35.1.1320.gc452695387.dirty

Reviewed-by: Mike Leach mike.leach@linaro.org