Cornelia Huck 237242bddc virtio: Don't access index after unregister. ... Virtio wants to release used indices after the corresponding virtio device has been unregistered. However, virtio does not hold an extra reference, giving up its last reference with device_unregister(), making accessing dev->index afterwards invalid. I actually saw problems when testing my (not-yet-merged) virtio-ccw code: - device_add virtio-net,id=xxx -> creates device virtio<n> with n>0 - device_del xxx -> deletes virtio<n>, but calls ida_simple_remove with an index of 0 - device_add virtio-net,id=xxx -> tries to add virtio0, which is still in use... So let's save the index we want to release before calling device_unregister(). Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Cc: stable@kernel.org Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>		2012-11-09 14:54:24 +10:30
..
config.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
Kconfig	virtio: remove CONFIG_VIRTIO_RING	2012-09-28 15:05:15 +09:30
Makefile	virtio: remove CONFIG_VIRTIO_RING	2012-09-28 15:05:15 +09:30
virtio_balloon.c	virtio-balloon: fix add/get API use	2012-07-09 09:07:22 +09:30
virtio_mmio.c	virtio_mmio: Don't attempt to create empty virtqueues	2012-09-28 15:05:16 +09:30
virtio_pci.c	drivers/virtio/virtio_pci.c: fix error return code	2012-09-28 15:05:16 +09:30
virtio_ring.c	virtio-ring: move queue_index to vring_virtqueue	2012-09-28 15:05:15 +09:30
virtio.c	virtio: Don't access index after unregister.	2012-11-09 14:54:24 +10:30