On Fri, Sep 09, 2016 at 11:30:41AM +0200, Harish Jenny K N wrote:
> dev->port_usb is checked for null pointer previously, so dev->port_usb
> might be null during no zlp check, fix it by adding null pointer check.
> 
> Acked-by: Jim Baxter <jim_bax...@mentor.com>
> Signed-off-by: Harish Jenny K N <harish_kand...@mentor.com>
> ---
>  drivers/usb/gadget/function/u_ether.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/gadget/function/u_ether.c 
> b/drivers/usb/gadget/function/u_ether.c
> index 3be4b93..9c8c9ed 100644
> --- a/drivers/usb/gadget/function/u_ether.c
> +++ b/drivers/usb/gadget/function/u_ether.c
> @@ -571,7 +571,8 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb,
>       req->complete = tx_complete;
>  
>       /* NCM requires no zlp if transfer is dwNtbInMaxSize */
> -     if (dev->port_usb->is_fixed &&
> +     if (dev->port_usb &&
> +         dev->port_usb->is_fixed &&
>           length == dev->port_usb->fixed_in_len &&
>           (length % in->maxpacket) == 0)
>               req->zero = 0;

Acked-by: Peter Chen <peter.c...@nxp.com>

-- 

Best Regards,
Peter Chen

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