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From: <gregkh@linuxfoundation.org>
To: lgs201920130244@gmail.com,gregkh@linuxfoundation.org,johan@kernel.org,stable@kernel.org
Cc: <stable@vger.kernel.org>
Subject: FAILED: patch "[PATCH] usb: musb: omap2430: Do not put borrowed of_node in probe" failed to apply to 6.1-stable tree
Date: Mon, 27 Jul 2026 15:28:53 +0200	[thread overview]
Message-ID: <2026072753-efficient-culpable-80d7@gregkh> (raw)


The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x c947360ae63eee1c9eacc030dd6f5a53f717addf
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2026072753-efficient-culpable-80d7@gregkh' --subject-prefix 'PATCH 6.1.y' 'HEAD^..'

Possible dependencies:



thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From c947360ae63eee1c9eacc030dd6f5a53f717addf Mon Sep 17 00:00:00 2001
From: Guangshuo Li <lgs201920130244@gmail.com>
Date: Mon, 13 Jul 2026 19:47:11 +0800
Subject: [PATCH] usb: musb: omap2430: Do not put borrowed of_node in probe

omap2430_probe() stores pdev->dev.of_node in a local np variable. This is
a borrowed pointer and the probe function does not take a reference to
it.

The success and error paths nevertheless call of_node_put(np). This drops
a reference that is owned by the platform device, and can leave
pdev->dev.of_node with an unbalanced reference count.

Do not put the borrowed platform device node from omap2430_probe().
References taken for the child MUSB device are handled by the device core,
and the ctrl-module phandle reference is still released separately.

Fixes: ffbe2feac59b ("usb: musb: omap2430: Fix probe regression for missing resources")
Cc: stable <stable@kernel.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Link: https://patch.msgid.link/20260713114711.955253-1-lgs201920130244@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 333ab79f0ca9..6e749faac33c 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -454,7 +454,6 @@ static int omap2430_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "failed to register musb device\n");
 		goto err_disable_rpm;
 	}
-	of_node_put(np);
 
 	return 0;
 
@@ -464,7 +463,6 @@ static int omap2430_probe(struct platform_device *pdev)
 	if (!IS_ERR(glue->control_otghs))
 		put_device(glue->control_otghs);
 err_put_musb:
-	of_node_put(np);
 	platform_device_put(musb);
 
 	return ret;


             reply	other threads:[~2026-07-27 13:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-27 13:28 gregkh [this message]
2026-07-30 14:06 ` [PATCH 6.1.y 1/2] usb: musb: omap2430: clean up probe error handling Sasha Levin
2026-07-30 14:06   ` [PATCH 6.1.y 2/2] usb: musb: omap2430: Do not put borrowed of_node in probe Sasha Levin

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