lkml.org 
[lkml]   [2014]   [Nov]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 5/6] hw_random: don't double-check old_rng.
Date
From: Rusty Russell <rusty@rustcorp.com.au>

Interesting anti-pattern.

Signed-off-by: Rusty Russell <rusty@rustcorp.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 c31bf91..fc5de7d 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -480,14 +480,13 @@ 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


\
 
 \ /
  Last update: 2014-11-03 17:41    [W:0.080 / U:3.304 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site