Re: [PATCH v3 1/2] virtio-rng: fix stuck of hot-unplugging busy device
From: Amit Shah <hidden>
Date: 2014-09-10 07:03:54
Also in:
kvm, stable
On (Wed) 10 Sep 2014 [14:11:36], Amos Kong wrote:
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 <redacted> Cc: stable@vger.kernel.org
Reviewed-by: Amit Shah <redacted> Amit