During the review of "[PATCH] vsock/virtio: Initialize core virtio vsock before registering the driver", Stefan pointed out some possible issues in the .probe() and .remove() callbacks of the virtio-vsock driver. This series tries to solve these issues: - Patch 1 postpones the 'the_virtio_vsock' assignment at the end of the .probe() to avoid that some sockets queue works when the initialization is not finished. - Patches 2 and 3 stop workers before to call vdev->config->reset(vdev) to be sure that no one is accessing the device, and adds another flush at the end of the .remove() to avoid use after free. - Patch 4 free also used buffers in the virtqueues during the .remove(). Stefano Garzarella (4): vsock/virtio: fix locking around 'the_virtio_vsock' vsock/virtio: stop workers during the .remove() vsock/virtio: fix flush of works during the .remove() vsock/virtio: free used buffers during the .remove() net/vmw_vsock/virtio_transport.c | 105 ++++++++++++++++++++++++++----- 1 file changed, 90 insertions(+), 15 deletions(-) -- 2.20.1
