Patch "mcb: fix error handling for different scenarios when parsing" has been added to the 6.1-stable tree

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

    mcb: fix error handling for different scenarios when parsing

to the 6.1-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:
     mcb-fix-error-handling-for-different-scenarios-when-parsing.patch
and it can be found in the queue-6.1 subdirectory.

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


>From 63ba2d07b4be72b94216d20561f43e1150b25d98 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sanju=C3=A1n=20Garc=C3=ADa=2C=20Jorge?=
 <Jorge.SanjuanGarcia@xxxxxxxxxx>
Date: Thu, 19 Oct 2023 14:15:34 +0000
Subject: mcb: fix error handling for different scenarios when parsing

From: Sanjuán García, Jorge <Jorge.SanjuanGarcia@xxxxxxxxxx>

commit 63ba2d07b4be72b94216d20561f43e1150b25d98 upstream.

chameleon_parse_gdd() may fail for different reasons and end up
in the err tag. Make sure we at least always free the mcb_device
allocated with mcb_alloc_dev().

If mcb_device_register() fails, make sure to give up the reference
in the same place the device was added.

Fixes: 728ac3389296 ("mcb: mcb-parse: fix error handing in chameleon_parse_gdd()")
Cc: stable <stable@xxxxxxxxxx>
Reviewed-by: Jose Javier Rodriguez Barbarin <JoseJavier.Rodriguez@xxxxxxxxxx>
Signed-off-by: Jorge Sanjuan Garcia <jorge.sanjuangarcia@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20231019141434.57971-2-jorge.sanjuangarcia@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/mcb/mcb-core.c  |    1 +
 drivers/mcb/mcb-parse.c |    2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/mcb/mcb-core.c
+++ b/drivers/mcb/mcb-core.c
@@ -246,6 +246,7 @@ int mcb_device_register(struct mcb_bus *
 	return 0;
 
 out:
+	put_device(&dev->dev);
 
 	return ret;
 }
--- a/drivers/mcb/mcb-parse.c
+++ b/drivers/mcb/mcb-parse.c
@@ -106,7 +106,7 @@ static int chameleon_parse_gdd(struct mc
 	return 0;
 
 err:
-	put_device(&mdev->dev);
+	mcb_free_dev(mdev);
 
 	return ret;
 }


Patches currently in stable-queue which might be from Jorge.SanjuanGarcia@xxxxxxxxxx are

queue-6.1/mcb-fix-error-handling-for-different-scenarios-when-parsing.patch



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