From: Rusty Russell <rusty@rustcorp.com.au>
Date: Sat, 13 Jun 2009 04:16:39 +0000 (-0600)
Subject: virtio: handle short buffers in virtio_rng.
X-Git-Tag: v2.6.31-rc1~369^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=594de1dd6449f79c99e1ba4577ea0e4e06e2b405;p=pandora-kernel.git

virtio: handle short buffers in virtio_rng.

If the device fills less than 4 bytes of our random buffer, we'll
BUG_ON.  It's nicer to handle the case where it partially fills the
buffer (the protocol doesn't explicitly bad that).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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