From: Greg KH <gregkh@linuxfoundation.org>
To: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Cc: heikki.krogerus@linux.intel.com, jon@solid-run.com,
rafael.j.wysocki@intel.com, stable@vger.kernel.org
Subject: Re: [PATCH] software node: balance refcount for managed sw nodes
Date: Mon, 27 Sep 2021 15:34:02 +0200 [thread overview]
Message-ID: <YVHISkh2QngryHsR@kroah.com> (raw)
In-Reply-To: <97a611be-3deb-111e-5619-f0f015393e24@nxp.com>
On Mon, Sep 27, 2021 at 03:42:42PM +0300, Laurentiu Tudor wrote:
>
> On 9/27/2021 3:17 PM, Greg KH wrote:
> > On Mon, Sep 27, 2021 at 01:22:49PM +0300, Laurentiu Tudor wrote:
> >> software_node_notify(), on KOBJ_REMOVE drops the refcount twice on managed
> >> software nodes, thus leading to underflow errors. Balance the refcount by
> >> bumping it in the device_create_managed_software_node() function.
> >>
> >> The error [1] was encountered after adding a .shutdown() op to our
> >> fsl-mc-bus driver.
> >>
> >> [Backported to stable from mainline commit
> >> 5aeb05b27f81 ("software node: balance refcount for managed software nodes")]
>
> But ...
Ah, missed that up here in the middle of the changelog text, sorry.
greg k-h
next prev parent reply other threads:[~2021-09-27 13:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-27 10:22 [PATCH] software node: balance refcount for managed sw nodes Laurentiu Tudor
2021-09-27 12:17 ` Greg KH
2021-09-27 12:42 ` Laurentiu Tudor
2021-09-27 13:34 ` Greg KH [this message]
2021-09-27 13:36 ` Heikki Krogerus
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