Patch "can: mscan: mpc5xxx: mpc5xxx_can_probe(): add missing put_clock() in error path" has been added to the 4.9-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    can: mscan: mpc5xxx: mpc5xxx_can_probe(): add missing put_clock() in error path

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     can-mscan-mpc5xxx-mpc5xxx_can_probe-add-missing-put_.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 7f1465a380d24715b751b41ec0ff4769b9f4e8b8
Author: Dongliang Mu <dzm91@xxxxxxxxxxx>
Date:   Mon Oct 24 19:48:07 2022 +0800

    can: mscan: mpc5xxx: mpc5xxx_can_probe(): add missing put_clock() in error path
    
    [ Upstream commit 3e5b3418827cefb5e1cc658806f02965791b8f07 ]
    
    The commit 1149108e2fbf ("can: mscan: improve clock API use") only
    adds put_clock() in mpc5xxx_can_remove() function, forgetting to add
    put_clock() in the error handling code.
    
    Fix this bug by adding put_clock() in the error handling code.
    
    Fixes: 1149108e2fbf ("can: mscan: improve clock API use")
    Signed-off-by: Dongliang Mu <dzm91@xxxxxxxxxxx>
    Link: https://lore.kernel.org/all/20221024133828.35881-1-mkl@xxxxxxxxxxxxxx
    Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c
index 2949a381a94d..21993ba7ae2a 100644
--- a/drivers/net/can/mscan/mpc5xxx_can.c
+++ b/drivers/net/can/mscan/mpc5xxx_can.c
@@ -336,14 +336,14 @@ static int mpc5xxx_can_probe(struct platform_device *ofdev)
 					       &mscan_clksrc);
 	if (!priv->can.clock.freq) {
 		dev_err(&ofdev->dev, "couldn't get MSCAN clock properties\n");
-		goto exit_free_mscan;
+		goto exit_put_clock;
 	}
 
 	err = register_mscandev(dev, mscan_clksrc);
 	if (err) {
 		dev_err(&ofdev->dev, "registering %s failed (err=%d)\n",
 			DRV_NAME, err);
-		goto exit_free_mscan;
+		goto exit_put_clock;
 	}
 
 	dev_info(&ofdev->dev, "MSCAN at 0x%p, irq %d, clock %d Hz\n",
@@ -351,7 +351,9 @@ static int mpc5xxx_can_probe(struct platform_device *ofdev)
 
 	return 0;
 
-exit_free_mscan:
+exit_put_clock:
+	if (data->put_clock)
+		data->put_clock(ofdev);
 	free_candev(dev);
 exit_dispose_irq:
 	irq_dispose_mapping(irq);