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mtd: check for valid pdata inside plat_nand

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If plat_nand loads and the platform_data is not properly set it will segfault.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
John Crispin 2012-07-22 08:59:57 +02:00 committed by David Woodhouse
parent b8c4bf2610
commit da3888cb84
1 changed files with 5 additions and 0 deletions
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5
drivers/mtd/nand/plat_nand.c
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@ -37,6 +37,11 @@ static int __devinit plat_nand_probe(struct platform_device *pdev)
const char **part_types;
int err = 0;
if (!pdata) {
dev_err(&pdev->dev, "platform_nand_data is missing\n");
return -EINVAL;
}
if (pdata->chip.nr_chips < 1) {
dev_err(&pdev->dev, "invalid number of chips specified\n");
return -EINVAL;