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: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> --- block/bsg.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/block/bsg.c b/block/bsg.c index 4eebcd5..1ba9bc6 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -932,7 +932,8 @@ void bsg_unregister_queue(struct request { 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"); -- 1.4.3.2 - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html