[PATCH 0/2] hwrng: don't fetch data before device init

[Amit Shah <amit.shah@redhat.com>]

Hi,

When booting a recent kernel under KVM with the virtio-rng device
enabled, the boot process was stalling.  Bisect pointed to a commit
made during the 3.15 window to fetch randomness from newly-registered
devices in the hwrng core.  The details are in the patches.

I considered a couple of approaches, but basing on the init() function
being registered, as is done in patch 1 here, seems like the best idea,
since quite a few drivers need to initialize their devices before data
is fetched off them.

Please review and apply if appropriate,

Amit Shah (2):
  hwrng: don't fetch rng from sources without init
  virtio: rng: introduce an init fn for hwrng core

 drivers/char/hw_random/core.c       |  8 +++++---
 drivers/char/hw_random/virtio-rng.c | 11 +++++++++++
 2 files changed, 16 insertions(+), 3 deletions(-)

-- 
1.9.3