Re: [PATCH 3/3] usb: gadget: udc: renesas_usb3: protect usb3_ep->started in usb3_start_pipen()

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On Tue, Jul 18, 2017 at 2:26 PM, Yoshihiro Shimoda
<yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote:
> This patch fixes an issue that unexpected behavior happens when
> both the interrupt handler and renesas_usb3_ep_enable() are called.
> In this case, since usb3_start_pipen() checked the usb3_ep->started,
> but the flags was not protected. So, this patch protects the flag
> by usb3->lock. Since renesas_usb3_ep_enable() for EP0 will be not called,
> this patch doesn't take care of usb3_start_pipe0().
>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>

Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds



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