On 11/10/2015 06:52 PM, Felipe F. Tonello wrote:
> This makes sure f_midi doesn't try to enqueue data when the IN endpoint is
> disabled, ie, USB cable is disconnected.
>
> Signed-off-by: Felipe F. Tonello <e...@felipetonello.com>
Reviewed-by: Robert Baldyga <r.bald...@samsung.com>
> ---
> drivers/usb/gadget/function/f_midi.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/gadget/function/f_midi.c
> b/drivers/usb/gadget/function/f_midi.c
> index ce3c8a6..eeb989d 100644
> --- a/drivers/usb/gadget/function/f_midi.c
> +++ b/drivers/usb/gadget/function/f_midi.c
> @@ -545,7 +545,7 @@ static void f_midi_transmit(struct f_midi *midi, struct
> usb_request *req)
> }
> }
>
> - if (req->length > 0) {
> + if (req->length > 0 && ep->enabled) {
> int err;
>
> err = usb_ep_queue(ep, req, GFP_ATOMIC);
>
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