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usb: dwc3: imx8mp: fix device leak at unbind

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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: 6dd2565989 ("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>
This commit is contained in:
Johan Hovold 2025-07-24 11:19:06 +02:00 • committed by Greg Kroah-Hartman
parent 22fcf88b02
commit 086a0e516f
1 changed files with 6 additions and 1 deletions
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7
drivers/usb/dwc3/dwc3-imx8mp.c
View file

@ -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 @@ disable_rpm:
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);