hwrng: core - remove (un)register_miscdev()

These functions are redundant after commit 0daa7a0afd0f ("hwrng: Avoid
manual device_create_file() calls").

Let's call misc_(de)register() directly.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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 d8bc69025ae1a6c4cc84ea13b1cf3dbcc6b1a0fb..c42fb9fdcccec0ec32dbc1be5cf6c6853e44d27c 100644 (file)
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -486,16 +486,6 @@ static struct attribute *rng_dev_attrs[] = {
 
 ATTRIBUTE_GROUPS(rng_dev);
 
-static void __exit unregister_miscdev(void)
-{
-       misc_deregister(&rng_miscdev);
-}
-
-static int __init register_miscdev(void)
-{
-       return misc_register(&rng_miscdev);
-}
-
 static int hwrng_fillfn(void *unused)
 {
        size_t entropy, entropy_credit = 0; /* in 1/1024 of a bit */
@@ -709,7 +699,7 @@ static int __init hwrng_modinit(void)
                return -ENOMEM;
        }
 
-       ret = register_miscdev();
+       ret = misc_register(&rng_miscdev);
        if (ret) {
                kfree(rng_fillbuf);
                kfree(rng_buffer);
@@ -726,7 +716,7 @@ static void __exit hwrng_modexit(void)
        kfree(rng_fillbuf);
        mutex_unlock(&rng_mutex);
 
-       unregister_miscdev();
+       misc_deregister(&rng_miscdev);
 }
 
 fs_initcall(hwrng_modinit); /* depends on misc_register() */