提交 df468820 编写于 作者: F FUJITA Tomonori 提交者: James Bottomley

[SCSI] bsg: fix bsg_unregister_queue

scsi_sysfs_add_sdev ignores the bsg_register_queue failure, so
bsg_unregister_queue must check whether the queue has a bsg device.
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
上级 39dca558
......@@ -932,7 +932,8 @@ void bsg_unregister_queue(struct request_queue *q)
{
struct bsg_class_device *bcd = &q->bsg_dev;
WARN_ON(!bcd->class_dev);
if (!bcd->class_dev)
return;
mutex_lock(&bsg_mutex);
sysfs_remove_link(&q->kobj, "bsg");
......
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