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[04/44] coresight: platform: Fix leaking device reference

Message ID 1537471099-19781-5-git-send-email-mathieu.poirier@linaro.org
State New
Headers show
Series coresight: next v4.19-rc4 | expand

Commit Message

Mathieu Poirier Sept. 20, 2018, 7:17 p.m. UTC 
From: Suzuki K Poulose <suzuki.poulose@arm.com>


We don't drop the reference on the remote device while parsing the
connection, held by bus_find_device(). Fix this by duplicating the
device name and dropping the reference.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Kim Phillips <kim.phillips@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

---
 drivers/hwtracing/coresight/of_coresight.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

-- 
2.7.4
diff mbox series

Patch

diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c
index 28d3aef1660b..4b279f8fea0c 100644
--- a/drivers/hwtracing/coresight/of_coresight.c
+++ b/drivers/hwtracing/coresight/of_coresight.c
@@ -162,7 +162,9 @@  static int of_coresight_parse_endpoint(struct device *dev,
 		}
 
 		pdata->outports[i] = endpoint.port;
-		pdata->child_names[i] = dev_name(rdev);
+		pdata->child_names[i] = devm_kstrdup(dev,
+						     dev_name(rdev),
+						     GFP_KERNEL);
 		pdata->child_ports[i] = rendpoint.id;
 		/* Connection record updated */
 		ret = 1;
@@ -172,6 +174,8 @@  static int of_coresight_parse_endpoint(struct device *dev,
 		of_node_put(rparent);
 	if (rport)
 		of_node_put(rport);
+	if (rdev)
+		put_device(rdev);
 
 	return ret;
 }