linux-kernel - [PATCH 9/9] coresight: perf: Add a missing call to etm_free

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Date:   Tue, 29 Nov 2016 09:47:19 -0700
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 9/9] coresight: perf: Add a missing call to etm_free_aux

From: Quentin Lambert <lambert.quentin@...il.com>

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@...il.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
---
 drivers/hwtracing/coresight/coresight-etm-perf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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);
 
-- 
2.7.4