crypto: ansi_prng - Use just a BH lock

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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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Sebastian Andrzej Siewior 2009-07-03 12:09:41 +08:00 • committed by Herbert Xu

parent a68f6610d4

commit ed94070058

1 changed files with 4 additions and 5 deletions

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crypto/ansi_cprng.c

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