In case create_singlethread_workqueue fails, the fix notifies callers the error to avoid potential NULL pointer dereferences. Signed-off-by: Kangjie Lu <kjlu@xxxxxxx> --- removed "unlikely" --- drivers/usb/host/u132-hcd.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 934584f0a20a..6d5b532b03f8 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -3203,6 +3203,8 @@ static int __init u132_hcd_init(void) return -ENODEV; printk(KERN_INFO "driver %s\n", hcd_name); workqueue = create_singlethread_workqueue("u132"); + if (!workqueue) + return -ENOMEM; retval = platform_driver_register(&u132_platform_driver); return retval; } -- 2.17.1