Suspend/resume broken on mx5/mx6 running 4.16

[Fabio Estevam]

Hi Russell,

On Mon, Aug 4, 2014 at 3:11 PM, Russell King - ARM Linux
<linux at arm.linux.org.uk> wrote:

> Right, so the code which oopsed was:
>
>    0:   e1a0c00d        mov     ip, sp
>    4:   e92dd818        push    {r3, r4, fp, ip, lr, pc}
>    8:   e24cb004        sub     fp, ip, #4
>    c:   e5904088        ldr     r4, [r0, #136]  ; 0x88
>   10:   e594302c        ldr     r3, [r4, #44]   ; 0x2c
>
> and from the above, we can see that r4 was NULL.
>
> fec_suspend(struct device *dev)
> {
>         struct net_device *ndev = dev_get_drvdata(dev);
>
> which would make ndev NULL.  I don't see how that could happen though,
> as we set the driver data in the probe function.  Any patches on top of
> 3.16?

Yes, I still do not understand why we are getting this NULL pointer
inside fec_suspend().

I am using the original 3.16 with no other patches on top.

Thanks