usb: dwc3: imx8mp: fix device leak at unbind

[ Upstream commit 086a0e516f7b3844e6328a5c69e2708b66b0ce18 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold
2025-08-21 12:28:22 -04:00
committed by Greg Kroah-Hartman
parent 1636b5e9c3
commit dc35f594b0

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);
err_node_put:
@@ -272,6 +274,8 @@ 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);