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| author | Amos Kong <akong@redhat.com> | 2014-09-11 22:20:39 +0930 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2014-09-11 22:28:34 +0930 |
| commit | 3856e548372513665670ca5db60d9a74b970fe0d (patch) | |
| tree | 50bf263fb7a3269e38a58c9177741f356912342b /Kbuild | |
| parent | 7ec62d421bdf29cb31101ae2689f7f3a9906289a (diff) | |
| download | op-kernel-dev-3856e548372513665670ca5db60d9a74b970fe0d.zip op-kernel-dev-3856e548372513665670ca5db60d9a74b970fe0d.tar.gz | |
virtio-rng: fix stuck of hot-unplugging busy device
When we try to hot-remove a busy virtio-rng device from QEMU monitor,
the device can't be hot-removed. Because virtio-rng driver hangs at
wait_for_completion_killable().
This patch exits the waiting by completing have_data completion before
unregistering, resets data_avail to avoid the hwrng core use wrong
buffer bytes.
Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions
