linux-kernel - [PATCH 3/9] UML - Locking commentary in the random driver

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Date:	Fri, 05 Jan 2007 13:42:13 -0500
From:	Jeff Dike <jdike@...toit.com>
To:	akpm@...l.org
cc:	linux-kernel@...r.kernel.org,
	user-mode-linux-devel@...ts.sourceforge.net
Subject: [PATCH 3/9] UML - Locking commentary in the random driver

Comment the lack of locking.

Signed-off-by: Jeff Dike <jdike@...toit.com>
--
 arch/um/drivers/random.c |    1 +
 1 file changed, 1 insertion(+)

Index: linux-2.6.18-mm/arch/um/drivers/random.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/random.c	2006-12-29 12:20:14.000000000 -0500
+++ linux-2.6.18-mm/arch/um/drivers/random.c	2007-01-01 13:12:54.000000000 -0500
@@ -78,6 +78,7 @@ static const struct file_operations rng_
 	.read		= rng_dev_read,
 };
 
+/* rng_init shouldn't be called more than once at boot time */
 static struct miscdevice rng_miscdev = {
 	RNG_MISCDEV_MINOR,
 	RNG_MODULE_NAME,

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