linux-kernel - [PATCH v3 2/9] mtd: nand: davinci: return ENOMEM if memory allocation is failed

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Date:	Thu, 5 Dec 2013 19:25:50 +0200
From:	Ivan Khoronzhuk <ivan.khoronzhuk@...com>
To:	Santosh Shilimkar <santosh.shilimkar@...com>,
	Rob Landley <rob@...dley.net>,
	Russell King <linux@....linux.org.uk>
CC:	<devicetree@...r.kernel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Rob Herring <rob.herring@...xeda.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Kumar Gala <galak@...nel.crashing.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-mtd@...ts.infradead.org>, <grygorii.strashko@...com>,
	<dwmw2@...radead.org>, Ivan Khoronzhuk <ivan.khoronzhuk@...com>
Subject: [PATCH v3 2/9] mtd: nand: davinci: return ENOMEM if memory allocation is failed

In case when memory allocation is failed the driver should return
ENOMEM instead of ENODEV.

Reviewed-by: Grygorii Strashko <grygorii.strashko@...com>
Reviewed-by: Taras Kondratiuk <taras@...com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@...com>
---
 drivers/mtd/nand/davinci_nand.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index d87213f..ddcd7c8 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -541,7 +541,7 @@ static struct davinci_nand_pdata
 				GFP_KERNEL);
 		pdev->dev.platform_data = pdata;
 		if (!pdata)
-			return NULL;
+			return ERR_PTR(-ENOMEM);
 		if (!of_property_read_u32(pdev->dev.of_node,
 			"ti,davinci-chipselect", &prop))
 			pdev->id = prop;
@@ -598,6 +598,9 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
 	nand_ecc_modes_t		ecc_mode;
 
 	pdata = nand_davinci_get_pdata(pdev);
+	if (IS_ERR(pdata))
+		return PTR_ERR(pdata);
+
 	/* insist on board-specific configuration */
 	if (!pdata)
 		return -ENODEV;
-- 
1.7.9.5

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