On Mon, Jun 11, 2018 at 04:31:11PM +0800, Zhouyang Jia wrote:
> When usb_alloc_urb fails, the lack of error-handling code may
> cause unexpected results.
>
> This patch adds error-handling code after calling usb_alloc_urb.
>
> Signed-off-by: Zhouyang Jia
> ---
> drivers/staging/rtl8192u/r8192U_core.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/staging/rtl8192u/r8192U_core.c
> b/drivers/staging/rtl8192u/r8192U_core.c
> index 7a0dbc0..3f09615 100644
> --- a/drivers/staging/rtl8192u/r8192U_core.c
> +++ b/drivers/staging/rtl8192u/r8192U_core.c
> @@ -1666,6 +1666,9 @@ static short rtl8192_usb_initendpoints(struct
> net_device *dev)
> void *oldaddr, *newaddr;
>
> priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
> + if (!priv->rx_urb[16])
> + return -ENOMEM;
> +
You just leaked memory :(
Well, this whole function leaks memory on the error paths, like here:
> priv->oldaddr = kmalloc(16, GFP_KERNEL);
> if (!priv->oldaddr)
> return -ENOMEM;
So can you fix this all up at the same time?
thanks,
greg k-h
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