coresight: Use coresight device names for sinks in PMU attribute

Move to using the coresight device name instead of the parent
device name for SINK attribute for PMU.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/hwtracing/coresight/coresight-etm-perf.c

@@ -523,7 +523,7 @@ int etm_perf_add_symlink_sink(struct coresight_device *csdev)
 	unsigned long hash;
 	const char *name;
 	struct device *pmu_dev = etm_pmu.dev;
-	struct device *pdev = csdev->dev.parent;
+	struct device *dev = &csdev->dev;
 	struct dev_ext_attribute *ea;
 
 	if (csdev->type != CORESIGHT_DEV_TYPE_SINK &&
@@ -536,15 +536,15 @@ int etm_perf_add_symlink_sink(struct coresight_device *csdev)
 	if (!etm_perf_up)
 		return -EPROBE_DEFER;
 
-	ea = devm_kzalloc(pdev, sizeof(*ea), GFP_KERNEL);
+	ea = devm_kzalloc(dev, sizeof(*ea), GFP_KERNEL);
 	if (!ea)
 		return -ENOMEM;
 
-	name = dev_name(pdev);
+	name = dev_name(dev);
 	/* See function coresight_get_sink_by_id() to know where this is used */
 	hash = hashlen_hash(hashlen_string(NULL, name));
 
-	ea->attr.attr.name = devm_kstrdup(pdev, name, GFP_KERNEL);
+	ea->attr.attr.name = devm_kstrdup(dev, name, GFP_KERNEL);
 	if (!ea->attr.attr.name)
 		return -ENOMEM;