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mtd: rawnand: denali_dt: error out if platform has no associated data

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denali->ecc_caps is a mandatory parameter. If it were left unset,
nand_ecc_choose_conf() would end up with NULL pointer access.

So, every compatible must be associated with proper denali_dt_data.
If of_device_get_match_data() returns NULL, let it fail immediately.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Masahiro Yamada 2019-12-20 20:31:51 +09:00 committed by Miquel Raynal
parent 393947e582
commit 8234820138
1 changed files with 6 additions and 5 deletions
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11
drivers/mtd/nand/raw/denali_dt.c
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@ -118,11 +118,12 @@ static int denali_dt_probe(struct platform_device *pdev)
denali = &dt->controller;
data = of_device_get_match_data(dev);
if (data) {
denali->revision = data->revision;
denali->caps = data->caps;
denali->ecc_caps = data->ecc_caps;
}
if (WARN_ON(!data))
return -EINVAL;
denali->revision = data->revision;
denali->caps = data->caps;
denali->ecc_caps = data->ecc_caps;
denali->dev = dev;
denali->irq = platform_get_irq(pdev, 0);