Re: [RFC PATCH] usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend

[UTTKARSH AGGARWAL <quic_uaggarwa@xxxxxxxxxxx>]

On 1/17/2024 2:52 PM, UTTKARSH AGGARWAL wrote:
> On 1/17/2024 12:47 PM, Kuen-Han Tsai wrote:
> > >          ret = dwc3_gadget_soft_disconnect(dwc);
> > >          if (ret)
> > >                  goto err;
> > For improved readability, we can remove the goto statement and move
> > the error handling logic here.
>
> Hi Kuen-Han,
>
> Thanks for the suggestion.
> Does this looks good to you ?
>
>    int ret = dwc3_gadget_soft_disconnect(dwc);if (ret) {        if 
> (dwc->softconnect)            dwc3_gadget_soft_connect(dwc);
>
>        return ret;    }    spin_lock_irqsave(&dwc->lock, flags);    if 
> (dwc->gadget_driver)  dwc3_disconnect_gadget(dwc); 
>  spin_unlock_irqrestore(&dwc->lock, flags);

Sorry for the mistake.

int ret = dwc3_gadget_soft_disconnect(dwc);

if (ret) {

      if (dwc->softconnect)

                 dwc3_gadget_soft_connect(dwc);

      return ret;

}

spin_lock_irqsave(&dwc->lock, flags);

if (dwc->gadget_driver)

       dwc3_disconnect_gadget(dwc);

spin_unlock_irqrestore(&dwc->lock, flags);