[PATCH v5 REPOST 5/6] hw_random: don't double-check old_rng.
From: Amos Kong <hidden>
Date: 2014-12-08 08:53:01
Also in:
kvm, linux-crypto, lkml
Subsystem:
hardware random number generator core, the rest · Maintainers:
Olivia Mackall, Herbert Xu, Linus Torvalds
From: Rusty Russell <redacted> Interesting anti-pattern. Signed-off-by: Rusty Russell <redacted> --- 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