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mtd: rawnand: stm32_fmc2: fix a buffer overflow

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This patch solves following static checker warning:
drivers/mtd/nand/raw/stm32_fmc2_nand.c:350 stm32_fmc2_nfc_select_chip()
error: buffer overflow 'nfc->data_phys_addr' 2 <= 2

The CS value can only be 0 or 1.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Fixes: 2cd457f328 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1595325127-32693-1-git-send-email-christophe.kerello@st.com
This commit is contained in:
Christophe Kerello 2020-07-21 11:52:07 +02:00 committed by Miquel Raynal
parent 4bc0224323
commit ab16f54ef3
1 changed files with 1 additions and 1 deletions
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2
drivers/mtd/nand/raw/stm32_fmc2_nand.c
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@ -1763,7 +1763,7 @@ static int stm32_fmc2_nfc_parse_child(struct stm32_fmc2_nfc *nfc,
return ret;
}
if (cs > FMC2_MAX_CE) {
if (cs >= FMC2_MAX_CE) {
dev_err(nfc->dev, "invalid reg value: %d\n", cs);
return -EINVAL;
}