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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-25 21:06:30 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-25 21:06:30 -0800 |
| commit | 422d26b6ecd77af8c77f2a40580679459825170f (patch) | |
| tree | 632e690e458fb7b27db200cd6fcd5429e143e419 /drivers/block/virtio_blk.c | |
| parent | 4c271bb67c04253c1e99006eb48fb773a8fe8c0f (diff) | |
| parent | 949db153b6466c6f7cad5a427ecea94985927311 (diff) | |
| download | blackbird-op-linux-422d26b6ecd77af8c77f2a40580679459825170f.tar.gz blackbird-op-linux-422d26b6ecd77af8c77f2a40580679459825170f.zip | |
Merge 3.8-rc5 into driver-core-next
This resolves a gpio driver merge issue pointed out in linux-next.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/block/virtio_blk.c')
| -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 |
