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| author | David S. Miller <davem@davemloft.net> | 2013-01-29 15:32:13 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-01-29 15:32:13 -0500 |
| commit | f1e7b73acc26e8908af783bcd3a9900fd80688f5 (patch) | |
| tree | 9a9382fb7f12f1889020efb4bffa3f4a88589fc5 /drivers/block | |
| parent | 218774dc341f219bfcf940304a081b121a0e8099 (diff) | |
| parent | fc16e884a2320198b8cb7bc2fdcf6b4485e79709 (diff) | |
| download | linux-f1e7b73acc26e8908af783bcd3a9900fd80688f5.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Bring in the 'net' tree so that we can get some ipv4/ipv6 bug
fixes that some net-next work will build upon.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/virtio_blk.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 9d8409c02082..8ad21a25bc0d 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -889,6 +889,7 @@ static void virtblk_remove(struct virtio_device *vdev) { struct virtio_blk *vblk = vdev->priv; int index = vblk->index; + int refc; /* Prevent config work handler from accessing the device. */ mutex_lock(&vblk->config_lock); @@ -903,11 +904,15 @@ static void virtblk_remove(struct virtio_device *vdev) flush_work(&vblk->config_work); + refc = atomic_read(&disk_to_dev(vblk->disk)->kobj.kref.refcount); put_disk(vblk->disk); mempool_destroy(vblk->pool); vdev->config->del_vqs(vdev); kfree(vblk); - ida_simple_remove(&vd_index_ida, index); + + /* Only free device id if we don't have any users */ + if (refc == 1) + ida_simple_remove(&vd_index_ida, index); } #ifdef CONFIG_PM |