linux-kernel - [PATCH v2 03/10] coresight: platform: Fix refcounting for graph nodes

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Message-Id: <1531997715-6767-4-git-send-email-suzuki.poulose@arm.com>
Date:   Thu, 19 Jul 2018 11:55:07 +0100
From:   Suzuki K Poulose <suzuki.poulose@....com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, robh@...nel.org,
        mathieu.poirier@...aro.org, sudeep.holla@....com,
        frowand.list@...il.com, devicetree@...r.kernel.org,
        mark.rutland@....com, matt.sealey@....com,
        charles.garcia-tobin@....com, coresight@...ts.linaro.org,
        john.horley@....com, mike.leach@...aro.org,
        Suzuki K Poulose <suzuki.poulose@....com>
Subject: [PATCH v2 03/10] coresight: platform: Fix refcounting for graph nodes

The coresight driver doesn't drop the references on the
remote endpoint/port nodes. Add the missing of_node_put()
calls.

Reported-by: Mathieu Poirier <mathieu.poirier@...aro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@....com>
---
Changes since v1:
 - Splitted from of_node recounting fix, part 2
---
 drivers/hwtracing/coresight/of_coresight.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c
index 68faaf8..6c2f95a 100644
--- a/drivers/hwtracing/coresight/of_coresight.c
+++ b/drivers/hwtracing/coresight/of_coresight.c
@@ -167,6 +167,11 @@ static int of_coresight_parse_endpoint(struct device *dev,
 		(*i)++;
 	} while (0);
 
+	if (rparent)
+		of_node_put(rparent);
+	if (rport)
+		of_node_put(rport);
+
 	return ret;
 }
 
-- 
2.7.4