[PATCH] coresight: perf: Add a missing call to etm_free_aux

[Quentin Lambert]

Most error branches following the call to alloc_event_data contain a call to
etm_free_aux. This patch add a call to etm_free_aux to an error branch
that does not call it.

This issue was found with Hector.

Signed-off-by: Quentin Lambert <lambert.quen...@gmail.com>
---
 drivers/hwtracing/coresight/coresight-etm-perf.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hwtracing/coresight/coresight-etm-perf.c
+++ b/drivers/hwtracing/coresight/coresight-etm-perf.c
@@ -215,7 +215,7 @@ static void *etm_setup_aux(int event_cpu
         */
        sink = coresight_get_enabled_sink(true);
        if (!sink)
-               return NULL;
+               goto err;
 
        INIT_WORK(&event_data->work, free_event_data);