commit 95e5c1a799a6293933c7e596f512d9283a938a2b
author Herbert Xu <herbert@gondor.apana.org.au> Thu May 21 16:19:54 2015 +0800
committer chrmhoffmann <chrmhoffmann@gmail.com> Sun Jul 22 18:06:53 2018 +0200
tree 144f7b6657999da0c10cadc547453269ba3945f0
parent d9970d66de622916e7500280229b13a7c0a8db6f

BACKPORT: random: Wake up all getrandom(2) callers when pool is ready

Clean cherry pick of 1d9de44e268d880cbe2d0bd3be1ef0661f93fd34.

If more than one application invokes getrandom(2) before the pool
is ready, then all bar one will be stuck forever because we use
wake_up_interruptible which wakes up a single task.

This patch replaces it with wake_up_all.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Bug: http://b/29621447
Change-Id: I5dfd7abac10898802f030e0a2af7110809283328
(cherry picked from commit 1d9de44e268d880cbe2d0bd3be1ef0661f93fd34)
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>