From: Quentin Lambert <lambert.quentin@gmail.com>
Date: Tue, 29 Nov 2016 16:47:19 +0000 (-0700)
Subject: coresight: perf: Add a missing call to etm_free_aux
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ec98960e0bbbe49b569b09c14ccd82efeb232dc8;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

coresight: perf: Add a missing call to etm_free_aux

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.quentin@gmail.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c
index 5a346fc8ce06..17741969026e 100644
--- 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, void **pages,
 	 */
 	sink = coresight_get_enabled_sink(true);
 	if (!sink)
-		return NULL;
+		goto err;
 
 	INIT_WORK(&event_data->work, free_event_data);