Re: [PATCH] usb: gadget: dummy_hcd: Fix error path

From: Alan Stern
Date: Sat Oct 02 2010 - 10:33:20 EST


On Sat, 2 Oct 2010, Rahul Ruikar wrote:

> In function dummy_udc_probe()
> call put_device() when device_register() fails.
>
> Signed-off-by: Rahul Ruikar <rahul.ruikar@xxxxxxxxx>
> ---
> drivers/usb/gadget/dummy_hcd.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
> index dc65462..2548091 100644
> --- a/drivers/usb/gadget/dummy_hcd.c
> +++ b/drivers/usb/gadget/dummy_hcd.c
> @@ -885,8 +885,10 @@ static int dummy_udc_probe (struct platform_device *pdev)
> dum->gadget.dev.parent = &pdev->dev;
> dum->gadget.dev.release = dummy_gadget_release;
> rc = device_register (&dum->gadget.dev);
> - if (rc < 0)
> + if (rc < 0) {
> + put_device(&dum->gadget.dev);
> return rc;
> + }
>
> usb_get_hcd (dummy_to_hcd (dum));

Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>

Similar changes are needed in net2280.c, file_storage.c and
f_mass_storage.c, probably also in goku_udc.c and langwell_udc.c.
Would you like to make them?

Alan Stern

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