diff options
| -rw-r--r-- | hw/usb/host-libusb.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c index dc0a8fe..f31e9cb 100644 --- a/hw/usb/host-libusb.c +++ b/hw/usb/host-libusb.c @@ -102,6 +102,7 @@ struct USBHostDevice { /* callbacks & friends */ QEMUBH *bh_nodev; QEMUBH *bh_postld; + bool bh_postld_pending; Notifier exit; /* request queues */ @@ -870,6 +871,10 @@ static int usb_host_open(USBHostDevice *s, libusb_device *dev) int rc; Error *local_err = NULL; + if (s->bh_postld_pending) { + return -1; + } + trace_usb_host_open_started(bus_num, addr); if (s->dh != NULL) { @@ -1528,6 +1533,7 @@ static void usb_host_post_load_bh(void *opaque) if (udev->attached) { usb_device_detach(udev); } + dev->bh_postld_pending = false; usb_host_auto_check(NULL); } @@ -1539,6 +1545,7 @@ static int usb_host_post_load(void *opaque, int version_id) dev->bh_postld = qemu_bh_new(usb_host_post_load_bh, dev); } qemu_bh_schedule(dev->bh_postld); + dev->bh_postld_pending = true; return 0; } |