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_eu@hotmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id:
20181211072649.20700-1-kraxel@redhat.com
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);