diff options
| -rw-r--r-- | drivers/staging/hv/vmbus_drv.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c index 1c949f5fb716..67a4f336df9c 100644 --- a/drivers/staging/hv/vmbus_drv.c +++ b/drivers/staging/hv/vmbus_drv.c @@ -768,7 +768,7 @@ MODULE_DEVICE_TABLE(pci, microsoft_hv_pci_table); static int __init hv_acpi_init(void) { - int ret; + int ret, t; init_completion(&probe_event); @@ -781,16 +781,25 @@ static int __init hv_acpi_init(void) if (ret) return ret; - wait_for_completion(&probe_event); + t = wait_for_completion_timeout(&probe_event, 5*HZ); + if (t == 0) { + ret = -ETIMEDOUT; + goto cleanup; + } if (irq <= 0) { - acpi_bus_unregister_driver(&vmbus_acpi_driver); - return -ENODEV; + ret = -ENODEV; + goto cleanup; } ret = vmbus_bus_init(irq); if (ret) - acpi_bus_unregister_driver(&vmbus_acpi_driver); + goto cleanup; + + return 0; + +cleanup: + acpi_bus_unregister_driver(&vmbus_acpi_driver); return ret; } |