On 12/11/18 8:26 AM, Gerd Hoffmann wrote:
> usb packets with no payload (zero length) seem to happen in practice for
> whatever reason. Add a check and skip the packet then, otherwise we'll
> trigger an assert.
>
> Reported-by: Leonardo Soares Müller <leozinho29...@hotmail.com>
> Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>
> ---
> hw/usb/dev-audio.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/hw/usb/dev-audio.c b/hw/usb/dev-audio.c
> index ee43e4914d..28ac7c5165 100644
> --- a/hw/usb/dev-audio.c
> +++ b/hw/usb/dev-audio.c
> @@ -321,6 +321,9 @@ static int streambuf_put(struct streambuf *buf, USBPacket
> *p)
> if (!free) {
> return 0;
> }
> + if (p->iov.size != USBAUDIO_PACKET_SIZE) {
> + return 0;
> + }
> assert(free >= USBAUDIO_PACKET_SIZE);
> usb_packet_copy(p, buf->data + (buf->prod % buf->size),
> USBAUDIO_PACKET_SIZE);
>
