[PATCH 8/22] /dev/random: BUG on premature random users

[Matt Mackall]

/dev/random  BUG on premature random users

Generate a fatal error if we try to use the get_random_bytes before
we're initialized.


 tiny-mpm/drivers/char/random.c |    9 ++-------
 1 files changed, 2 insertions(+), 7 deletions(-)

diff -puN drivers/char/random.c~bug-on-grb drivers/char/random.c
--- tiny/drivers/char/random.c~bug-on-grb	2004-03-20 13:38:22.000000000 -0600
+++ tiny-mpm/drivers/char/random.c	2004-03-20 13:38:22.000000000 -0600
@@ -1412,13 +1412,8 @@ static ssize_t extract_entropy(struct en
  */
 void get_random_bytes(void *buf, int nbytes)
 {
-	if (blocking_pool)
-		extract_entropy(blocking_pool, buf, nbytes, 0);
-	else if (input_pool)
-		extract_entropy(input_pool, buf, nbytes, 0);
-	else
-		printk(KERN_NOTICE "get_random_bytes called before "
-				   "random driver initialization\n");
+	BUG_ON(!blocking_pool);
+	extract_entropy(blocking_pool, buf, nbytes, 0);
 }
 
 EXPORT_SYMBOL(get_random_bytes);

_
-
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