linux-kernel - [ 162/180] fix typo/thinko in get_random

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Message-Id: <20121001225204.476606409@1wt.eu>
Date:	Tue, 02 Oct 2012 00:54:39 +0200
From:	Willy Tarreau <w@....eu>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Tony Luck <tony.luck@...el.com>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Willy Tarreau <w@....eu>
Subject: [ 162/180] fix typo/thinko in get_random_bytes()

2.6.32-longterm review patch.  If anyone has any objections, please let me know.

------------------

From: Luck, Tony <tony.luck@...el.com>

commit bd29e568a4cb6465f6e5ec7c1c1f3ae7d99cbec1 upstream.

If there is an architecture-specific random number generator we use it
to acquire randomness one "long" at a time.  We should put these random
words into consecutive words in the result buffer - not just overwrite
the first word again and again.

Signed-off-by: Tony Luck <tony.luck@...el.com>
Acked-by: H. Peter Anvin <hpa@...or.com>
Acked-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
Signed-off-by: Willy Tarreau <w@....eu>
---
 drivers/char/random.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 93b3c29..f2a1651 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -941,7 +941,7 @@ void get_random_bytes(void *buf, int nbytes)
 		if (!arch_get_random_long(&v))
 			break;
 
-		memcpy(buf, &v, chunk);
+		memcpy(p, &v, chunk);
 		p += chunk;
 		nbytes -= chunk;
 	}
-- 
1.7.2.1.45.g54fbc



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