[U-Boot] [PATCH v2 7/8] USB-CDC: ethernet error path potential oops fix

[Remy Bohmer]

Hi,

2010/8/13 Vitaly Kuzmichev <vkuzmichev at mvista.com>:
> Fix potential oops on rare error path.
> The patch is based on commit e7b13ec9235b9fded90f826ceeb8c34548631351
> (done by David Brownell <david-b at pacbell.net>) from linux-2.6.git.
>
> Description of the issue taken from linux kernel bugzilla:
> (https://bugzilla.kernel.org/show_bug.cgi?id=9594)
>
> The potential error can be tracked down as follows:
>
> (1) line 807: let the second conjunct on the "if" statment be false
>    meaning "dev->status_ep" is null. This means the "if" evaluates
>    to false.
>
> follow thru the code until...
>
> (2) line 808: usb_ep_disable(dev->status_ep) passes in a null argument,
>    however "usb_ep_disable" cannot handle that:
>
> (from include/linux/usb/gadget.h)
> 191 static inline int
> 192 usb_ep_disable (struct usb_ep *ep)
> 193 {
> 194         return ep->ops->disable (ep);
> 195 }
>
> --
>
> Signed-off-by: Vitaly Kuzmichev <vkuzmichev at mvista.com>
> ---
>  drivers/usb/gadget/ether.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>

Applied to u-boot-usb/cdc branch.
Thanks.

Remy