In case the frame timer doesn't run for a while due to the host being
busy skipped_uframes can become big enough that UFRAME_TIMER_NS *
skipped_uframes overflows. Which in turn throws off all subsequent
ehci frame timer calculations.
Reported-by: 李林 <8610_28@163.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id:
20170515104543.32044-1-kraxel@redhat.com
int need_timer = 0;
int64_t expire_time, t_now;
uint64_t ns_elapsed;
- int uframes, skipped_uframes;
+ uint64_t uframes, skipped_uframes;
int i;
t_now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);