diff options
Diffstat (limited to 'hw/usb/host-linux.c')
| -rw-r--r-- | hw/usb/host-linux.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/hw/usb/host-linux.c b/hw/usb/host-linux.c index c3684c8..048f8ff 100644 --- a/hw/usb/host-linux.c +++ b/hw/usb/host-linux.c @@ -887,8 +887,8 @@ static int usb_host_handle_data(USBDevice *dev, USBPacket *p) prem = 0; pbuf = NULL; rem = p->iov.size; - while (rem) { - if (prem == 0) { + do { + if (prem == 0 && rem > 0) { assert(v < p->iov.niov); prem = p->iov.iov[v].iov_len; pbuf = p->iov.iov[v].iov_base; @@ -938,7 +938,7 @@ static int usb_host_handle_data(USBDevice *dev, USBPacket *p) return USB_RET_STALL; } } - } + } while (rem > 0); return USB_RET_ASYNC; } |