On Sat, Mar 8, 2014 at 2:41 AM, Alexey Khoroshilov
<khoroshilov@xxxxxxxxx> wrote:
> If p54u_load_firmware() fails, p54u_probe() does not deallocate
> already allocated resources. The patch adds proper failure handling.
>
> Found by Linux Driver Verification project (linuxtesting.org).
>
> Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
> ---
> drivers/net/wireless/p54/p54usb.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c
> index 6e635cfa24c8..5df74503fd4f 100644
> --- a/drivers/net/wireless/p54/p54usb.c
> +++ b/drivers/net/wireless/p54/p54usb.c
> @@ -1053,6 +1053,10 @@ static int p54u_probe(struct usb_interface *intf,
> priv->upload_fw = p54u_upload_firmware_net2280;
> }
> err = p54u_load_firmware(dev, intf);
> + if (err) {
> + usb_put_dev(udev);
> + p54_free_common(dev);
> + }
> return err;
> }
The load_firmware puts down the reference
in case of error. Only free is required here.
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