linux-kernel - [074/114] gen_nand: Test if nr

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Date:	Tue, 24 Aug 2010 15:45:19 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Marek Vasut <marek.vasut@...il.com>,
	David Woodhouse <David.Woodhouse@...el.com>
Subject: [074/114] gen_nand: Test if nr_chips field is valid

2.6.35-stable review patch.  If anyone has any objections, please let us know.

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

From: Marek Vasut <marek.vasut@...il.com>

commit 01cd2ababddd55a127caa1cd20d570637e0d42e1 upstream.

Signed-off-by: Marek Vasut <marek.vasut@...il.com>
Signed-off-by: David Woodhouse <David.Woodhouse@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/mtd/nand/plat_nand.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -37,6 +37,11 @@ static int __devinit plat_nand_probe(str
 	struct resource *res;
 	int err = 0;
 
+	if (pdata->chip.nr_chips < 1) {
+		dev_err(&pdev->dev, "invalid number of chips specified\n");
+		return -EINVAL;
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res)
 		return -ENXIO;


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