hwrng: don't double-check old_rng.

Interesting anti-pattern.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 8d609a026465a73a2eb6fedf14727efba597df9a..e384ee3ed604d8733554db35f870a3239699e7ab 100644 (file)
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -472,14 +472,13 @@ 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();