linux-kernel - [PATCH] hwtracing: coresight: Replace acpi_bus_get

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Date:   Tue, 01 Feb 2022 18:58:09 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>
Subject: [PATCH] hwtracing: coresight: Replace acpi_bus_get_device()

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Replace acpi_bus_get_device() that is going to be dropped with
acpi_fetch_acpi_dev().

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/hwtracing/coresight/coresight-platform.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Index: linux-pm/drivers/hwtracing/coresight/coresight-platform.c
===================================================================
--- linux-pm.orig/drivers/hwtracing/coresight/coresight-platform.c
+++ linux-pm/drivers/hwtracing/coresight/coresight-platform.c
@@ -626,7 +626,7 @@ static int acpi_coresight_parse_link(str
 				     const union acpi_object *link,
 				     struct coresight_connection *conn)
 {
-	int rc, dir;
+	int dir;
 	const union acpi_object *fields;
 	struct acpi_device *r_adev;
 	struct device *rdev;
@@ -643,9 +643,9 @@ static int acpi_coresight_parse_link(str
 	    fields[3].type != ACPI_TYPE_INTEGER)
 		return -EINVAL;
 
-	rc = acpi_bus_get_device(fields[2].reference.handle, &r_adev);
-	if (rc)
-		return rc;
+	r_adev = acpi_fetch_acpi_dev(fields[2].reference.handle);
+	if (!r_adev)
+		return -ENODEV;
 
 	dir = fields[3].integer.value;
 	if (dir == ACPI_CORESIGHT_LINK_MASTER) {