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Date: Sat, 6 Dec 2014 12:16:41 +0800 From: Amos Kong <akong@...hat.com> To: virtualization@...ts.linux-foundation.org, rusty@...tcorp.com.au Cc: kvm@...r.kernel.org, m@...s.ch, mpm@...enic.com, amit.shah@...hat.com, linux-kernel@...r.kernel.org, herbert@...dor.apana.org.au Subject: [PATCH v5 5/6] hw_random: don't double-check old_rng. From: Rusty Russell <rusty@...tcorp.com.au> Interesting anti-pattern. Signed-off-by: Rusty Russell <rusty@...tcorp.com.au> --- drivers/char/hw_random/core.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c index 067270b..a9286bf 100644 --- a/drivers/char/hw_random/core.c +++ b/drivers/char/hw_random/core.c @@ -476,14 +476,13 @@ int hwrng_register(struct hwrng *rng) } old_rng = current_rng; + err = 0; if (!old_rng) { err = hwrng_init(rng); if (err) goto out_unlock; set_current_rng(rng); - } - err = 0; - if (!old_rng) { + err = register_miscdev(); if (err) { drop_current_rng(); -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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