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mtd: rawnand: marvell: use struct_size() in devm_kzalloc()
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; void *entry[]; }; instance = devm_kzalloc(dev, sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = devm_kzalloc(dev, struct_size(instance, entry, count), GFP_KERNEL); This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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@ -2550,9 +2550,8 @@ static int marvell_nand_chip_init(struct device *dev, struct marvell_nfc *nfc,
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}
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/* Alloc the nand chip structure */
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marvell_nand = devm_kzalloc(dev, sizeof(*marvell_nand) +
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(nsels *
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sizeof(struct marvell_nand_chip_sel)),
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marvell_nand = devm_kzalloc(dev,
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struct_size(marvell_nand, sels, nsels),
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GFP_KERNEL);
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if (!marvell_nand) {
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dev_err(dev, "could not allocate chip structure\n");
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