From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Date: Fri, 3 Jul 2009 04:09:41 +0000 (+0800)
Subject: crypto: ansi_prng - Use just a BH lock
X-Git-Tag: v2.6.32-rc1~731^2~89
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ed94070058033a3c99fe62c90d00c39dc443c679;p=pandora-kernel.git

crypto: ansi_prng - Use just a BH lock

The current code uses a mix of sping_lock() & spin_lock_irqsave(). This can
lead to deadlock with the correct timming & cprng_get_random() + cprng_reset()
sequence.
I've converted them to bottom half locks since all three user grab just a BH
lock so this runs probably in softirq :)

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

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