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Date:   Fri, 22 May 2020 17:43:40 +0800
From:   Dinghao Liu <>
Cc:     Wolfgang Grandegger <>,
        Marc Kleine-Budde <>,
        "David S. Miller" <>,
        Jakub Kicinski <>,,,
Subject: [PATCH] can: flexcan: Fix runtime PM imbalance on error

When register_flexcandev() returns an error code, a
pairing runtime PM usage counter decrement is needed
to keep the counter balanced.

Also, call pm_runtime_disable() when register_flexcandev()
returns an error code.

Signed-off-by: Dinghao Liu <>
 drivers/net/can/flexcan.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 94d10ec954a0..ea193426e5ae 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -1666,6 +1666,8 @@ static int flexcan_probe(struct platform_device *pdev)
 	return 0;
+	pm_runtime_put_noidle(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 	return err;

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