linux-kernel - [PATCH 5.14 187/849] coresight: cti: Correct the parameter for pm_runtime

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Date:   Mon, 15 Nov 2021 17:54:30 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Tao Zhang <quic_taozha@...cinc.com>,
        Leo Yan <leo.yan@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
Subject: [PATCH 5.14 187/849] coresight: cti: Correct the parameter for pm_runtime_put

From: Tao Zhang <quic_taozha@...cinc.com>

commit 692c9a499b286ea478f41b23a91fe3873b9e1326 upstream.

The input parameter of the function pm_runtime_put should be the
same in the function cti_enable_hw and cti_disable_hw. The correct
parameter to use here should be dev->parent.

Signed-off-by: Tao Zhang <quic_taozha@...cinc.com>
Reviewed-by: Leo Yan <leo.yan@...aro.org>
Fixes: 835d722ba10a ("coresight: cti: Initial CoreSight CTI Driver")
Cc: stable <stable@...r.kernel.org>
Link: https://lore.kernel.org/r/1629365377-5937-1-git-send-email-quic_taozha@quicinc.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/hwtracing/coresight/coresight-cti-core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hwtracing/coresight/coresight-cti-core.c
+++ b/drivers/hwtracing/coresight/coresight-cti-core.c
@@ -175,7 +175,7 @@ static int cti_disable_hw(struct cti_drv
 	coresight_disclaim_device_unlocked(csdev);
 	CS_LOCK(drvdata->base);
 	spin_unlock(&drvdata->spinlock);
-	pm_runtime_put(dev);
+	pm_runtime_put(dev->parent);
 	return 0;
 
 	/* not disabled this call */