random: run random_int_secret_init() run after all late_initcalls

The some platforms (e.g., ARM) initializes their clocks as
late_initcalls for some unknown reason.  So make sure
random_int_secret_init() is run after all of the late_initcalls are
run.

Cc: stable@vger.kernel.org
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 0d91fe52f3f5eee10397563361a4b1dd1579e8cf..92e6c67e1ae6cd3e21d40768dabd0a816f7e9228 100644 (file)
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1462,12 +1462,11 @@ struct ctl_table random_table[] = {
 
 static u32 random_int_secret[MD5_MESSAGE_BYTES / 4] ____cacheline_aligned;
 
-static int __init random_int_secret_init(void)
+int random_int_secret_init(void)
 {
        get_random_bytes(random_int_secret, sizeof(random_int_secret));
        return 0;
 }
-late_initcall(random_int_secret_init);
 
 /*
  * Get a random word for internal kernel use only. Similar to urandom but

diff --git a/include/linux/random.h b/include/linux/random.h
index 3b9377d6b7a5fd63b13d02fc238d7da99fbef026..6312dd9ba449b4d65f5bb6bcdc01d606fc2fdfa8 100644 (file)
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -17,6 +17,7 @@ extern void add_interrupt_randomness(int irq, int irq_flags);
 extern void get_random_bytes(void *buf, int nbytes);
 extern void get_random_bytes_arch(void *buf, int nbytes);
 void generate_random_uuid(unsigned char uuid_out[16]);
+extern int random_int_secret_init(void);
 
 #ifndef MODULE
 extern const struct file_operations random_fops, urandom_fops;

diff --git a/init/main.c b/init/main.c
index d03d2ec2eacfd351241af097f6402cf9b509e8e5..586cd3359c02c8c2afebf66dea9a3a6de0249b03 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -75,6 +75,7 @@
 #include <linux/blkdev.h>
 #include <linux/elevator.h>
 #include <linux/sched_clock.h>
+#include <linux/random.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -778,6 +779,7 @@ static void __init do_basic_setup(void)
        do_ctors();
        usermodehelper_enable();
        do_initcalls();
+       random_int_secret_init();
 }
 
 static void __init do_pre_smp_initcalls(void)