| Date | Mon, 24 Nov 2014 13:53:56 +0200 | From | "Michael S. Tsirkin" <> | Subject | [PATCH v3 18/41] virtio_blk: fix race at module removal |
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If a device appears while module is being removed, driver will get a callback after we've given up on the major number.
In theory this means this major number can get reused by something else, resulting in a conflict.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- drivers/block/virtio_blk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 055f3df..1f8b111 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -884,8 +884,8 @@ out_destroy_workqueue: static void __exit fini(void) { - unregister_blkdev(major, "virtblk"); unregister_virtio_driver(&virtio_blk); + unregister_blkdev(major, "virtblk"); destroy_workqueue(virtblk_wq); } module_init(init); -- MST
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