The patch below does not apply to the 5.15-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-5.15.y git checkout FETCH_HEAD git cherry-pick -x 086a0e516f7b3844e6328a5c69e2708b66b0ce18 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2025082121-magician-conceal-4df0@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 086a0e516f7b3844e6328a5c69e2708b66b0ce18 Mon Sep 17 00:00:00 2001 From: Johan Hovold johan@kernel.org Date: Thu, 24 Jul 2025 11:19:06 +0200 Subject: [PATCH] usb: dwc3: imx8mp: fix device leak at unbind
Make sure to drop the reference to the dwc3 device taken by of_find_device_by_node() on probe errors and on driver unbind.
Fixes: 6dd2565989b4 ("usb: dwc3: add imx8mp dwc3 glue layer driver") Cc: stable@vger.kernel.org # 5.12 Cc: Li Jun jun.li@nxp.com Signed-off-by: Johan Hovold johan@kernel.org Link: https://lore.kernel.org/r/20250724091910.21092-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
diff --git a/drivers/usb/dwc3/dwc3-imx8mp.c b/drivers/usb/dwc3/dwc3-imx8mp.c index 3edc5aca76f9..bce6af82f54c 100644 --- a/drivers/usb/dwc3/dwc3-imx8mp.c +++ b/drivers/usb/dwc3/dwc3-imx8mp.c @@ -244,7 +244,7 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev) IRQF_ONESHOT, dev_name(dev), dwc3_imx); if (err) { dev_err(dev, "failed to request IRQ #%d --> %d\n", irq, err); - goto depopulate; + goto put_dwc3; }
device_set_wakeup_capable(dev, true); @@ -252,6 +252,8 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev)
return 0;
+put_dwc3: + put_device(&dwc3_imx->dwc3->dev); depopulate: of_platform_depopulate(dev); remove_swnode: @@ -265,8 +267,11 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev)
static void dwc3_imx8mp_remove(struct platform_device *pdev) { + struct dwc3_imx8mp *dwc3_imx = platform_get_drvdata(pdev); struct device *dev = &pdev->dev;
+ put_device(&dwc3_imx->dwc3->dev); + pm_runtime_get_sync(dev); of_platform_depopulate(dev); device_remove_software_node(dev);