Message ID | 1334836476-27945-3-git-send-email-kraxel@redhat.com |
---|---|
State | New |
Headers | show |
diff --git a/hw/usb/host-linux.c b/hw/usb/host-linux.c index 061a1b7..c3684c8 100644 --- a/hw/usb/host-linux.c +++ b/hw/usb/host-linux.c @@ -884,16 +884,16 @@ static int usb_host_handle_data(USBDevice *dev, USBPacket *p) } v = 0; - prem = p->iov.iov[v].iov_len; - pbuf = p->iov.iov[v].iov_base; + prem = 0; + pbuf = NULL; rem = p->iov.size; while (rem) { if (prem == 0) { - v++; assert(v < p->iov.niov); prem = p->iov.iov[v].iov_len; pbuf = p->iov.iov[v].iov_base; assert(prem <= rem); + v++; } aurb = async_alloc(s); aurb->packet = p;
usb-host assumes the first iovec element is always valid. In case of a zero-length packet this isn't true though. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> --- hw/usb/host-linux.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-)