linux-kernel - [PATCH 2/2] gen_nand: Test if nr

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Message-Id: <1281581635-26213-2-git-send-email-marek.vasut@gmail.com>
Date:	Thu, 12 Aug 2010 04:53:55 +0200
From:	Marek Vasut <marek.vasut@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	linux-arm-kernel@...ts.infradead.org, linux@....linux.org.uk,
	nico@...xnic.net, kernel@...tstofly.org, kernel@...gutronix.de,
	u.kleine-koenig@...gutronix.de, kaloz@...nwrt.org, khc@...waw.pl,
	tj@...nel.org, gregkh@...e.de, stable-review@...nel.org,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Artem.Bityutskiy@...ia.com,
	David.Woodhouse@...el.com, ralf@...ux-mips.org, vapier@...too.org,
	michael.hennerich@...log.com, barry.song@...log.com,
	sonic.zhang@...log.com, cliff.cai@...log.com,
	uclinux-dist-devel@...ckfin.uclinux.org, yakovenkov@...il.com,
	w.sang@...gutronix.de, Marek Vasut <marek.vasut@...il.com>
Subject: [PATCH 2/2] gen_nand: Test if nr_chips field is valid

Signed-off-by: Marek Vasut <marek.vasut@...il.com>
---
 drivers/mtd/nand/plat_nand.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index 90e143e..317aff4 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -37,6 +37,11 @@ static int __devinit plat_nand_probe(struct platform_device *pdev)
 	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;
-- 
1.7.1

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