Johan Hovold johan@kernel.org writes:

Make sure to drop the reference to the control device taken by of_find_device_by_node() during probe when the driver is unbound.

Fixes: 8934d3e4d0e7 ("usb: musb: omap2430: Don't use omap_get_control_dev()") Cc: stable@vger.kernel.org # 3.13 Cc: Roger Quadros rogerq@kernel.org Signed-off-by: Johan Hovold johan@kernel.org

Reviewed-by: Kevin Hilman khilman@baylibre.com

---

drivers/usb/musb/omap2430.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 2970967a4fd2..36f756f9b7f6 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -400,7 +400,7 @@ static int omap2430_probe(struct platform_device *pdev) ret = platform_device_add_resources(musb, pdev->resource, pdev->num_resources); if (ret) { dev_err(&pdev->dev, "failed to add resources\n");

• goto err2;
  

• goto err_put_control_otghs;
  

  }

if (populate_irqs) { @@ -413,7 +413,7 @@ static int omap2430_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { ret = -EINVAL;

• 	goto err2;
  

• 	goto err_put_control_otghs;
  

  }

musb_res[i].start = res->start; @@ -441,14 +441,14 @@ static int omap2430_probe(struct platform_device *pdev) ret = platform_device_add_resources(musb, musb_res, i); if (ret) { dev_err(&pdev->dev, "failed to add IRQ resources\n");

• 	goto err2;
  

• 	goto err_put_control_otghs;
  

  } }

ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); if (ret) { dev_err(&pdev->dev, "failed to add platform_data\n");

• goto err2;
  

• goto err_put_control_otghs;
  

  }

pm_runtime_enable(glue->dev); @@ -463,7 +463,9 @@ static int omap2430_probe(struct platform_device *pdev) err3: pm_runtime_disable(glue->dev);

+err_put_control_otghs:

• if (!IS_ERR(glue->control_otghs))

• put_device(glue->control_otghs);
  

err2: platform_device_put(musb); @@ -477,6 +479,8 @@ static void omap2430_remove(struct platform_device *pdev) platform_device_unregister(glue->musb); pm_runtime_disable(glue->dev);

• if (!IS_ERR(glue->control_otghs))

• put_device(glue->control_otghs);
  

}

#ifdef CONFIG_PM

2.49.1