linux-kernel - [ 173/173] ramoops: fix use of rounddown_pow_of

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Date:	Fri, 28 Dec 2012 20:06:23 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Marco Stornelli <marco.stornelli@...il.com>,
	WANG Cong <xiyou.wangcong@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [ 173/173] ramoops: fix use of rounddown_pow_of_two()

3.2-stable review patch.  If anyone has any objections, please let me know.

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

From: Marco Stornelli <marco.stornelli@...il.com>

commit fdb5950754eb3dedb9fea7c8828d3e51d9dbc3f7 upstream.

The return value of rounddown_pow_of_two wasn't evaluated, so the
operation was a no-op.

Signed-off-by: Marco Stornelli <marco.stornelli@...il.com>
Reported-by: Andrew Morton <akpm@...ux-foundation.org>
Reviewed-by: WANG Cong <xiyou.wangcong@...il.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/char/ramoops.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
index feda90c..9c152ab 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -125,8 +125,8 @@ static int __init ramoops_probe(struct platform_device *pdev)
 		goto fail3;
 	}
 
-	rounddown_pow_of_two(pdata->mem_size);
-	rounddown_pow_of_two(pdata->record_size);
+	pdata->mem_size = rounddown_pow_of_two(pdata->mem_size);
+	pdata->record_size = rounddown_pow_of_two(pdata->record_size);
 
 	/* Check for the minimum memory size */
 	if (pdata->mem_size < MIN_MEM_SIZE &&


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