From: Sjur Brændeland <sjur.brandeland@xxxxxxxxxxxxxx>
Fix panic in virtio.c when CONFIG_DEBUG_SLAB is set.
Use device_del() and put_device() instead of
device_unregister(), and access device data before
calling put_device().
Signed-off-by: Sjur Brændeland <sjur.brandeland@xxxxxxxxxxxxxx>
cc: Guzman Lugo, Fernadndo <fernando.lugo@xxxxxx>
cc: Michael S. Tsirkin <mst@xxxxxxxxxx>
cc: virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
cc: Ohad Ben-Cohen <ohad@xxxxxxxxxx>
---
drivers/virtio/virtio.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index c3b3f7f..71eacd1 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -225,8 +225,9 @@ EXPORT_SYMBOL_GPL(register_virtio_device);
void unregister_virtio_device(struct virtio_device *dev)
{
- device_unregister(&dev->dev);
+ device_del(&dev->dev);
ida_simple_remove(&virtio_index_ida, dev->index);
+ put_device(&dev->dev);
}
EXPORT_SYMBOL_GPL(unregister_virtio_device);
--
1.7.5.4
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