coresight: etm4x: Make etm4_remove_dev() return void

etm4_remove_dev() returned zero unconditionally. Make it return void
instead, which makes it clear in the callers that there is no error to
handle. Simplify etm4_remove_platform_dev() accordingly.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230518201629.260672-1-u.kleine-koenig@pengutronix.de

diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index 891ec8e..5e9edbc 100644 (file)
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -2190,7 +2190,7 @@ static void clear_etmdrvdata(void *info)
        per_cpu(delayed_probe, cpu) = NULL;
 }
 
-static int __exit etm4_remove_dev(struct etmv4_drvdata *drvdata)
+static void __exit etm4_remove_dev(struct etmv4_drvdata *drvdata)
 {
        bool had_delayed_probe;
        /*
@@ -2217,8 +2217,6 @@ static int __exit etm4_remove_dev(struct etmv4_drvdata *drvdata)
                cscfg_unregister_csdev(drvdata->csdev);
                coresight_unregister(drvdata->csdev);
        }
-
-       return 0;
 }
 
 static void __exit etm4_remove_amba(struct amba_device *adev)
@@ -2231,13 +2229,12 @@ static void __exit etm4_remove_amba(struct amba_device *adev)
 
 static int __exit etm4_remove_platform_dev(struct platform_device *pdev)
 {
-       int ret = 0;
        struct etmv4_drvdata *drvdata = dev_get_drvdata(&pdev->dev);
 
        if (drvdata)
-               ret = etm4_remove_dev(drvdata);
+               etm4_remove_dev(drvdata);
        pm_runtime_disable(&pdev->dev);
-       return ret;
+       return 0;
 }
 
 static const struct amba_id etm4_ids[] = {