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nand: davinci: avoid out of bounds array access

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The array bounds have to be checked before accessing the array element.

Identified by cppcheck.

Fixes: 67ac6ffaee ("mtd: nand: davinci: add opportunity to write keystone U-boot image")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-07-30 23:29:21 +02:00 committed by Tom Rini
parent 3380d1c131
commit 51443f57d8
1 changed files with 2 additions and 2 deletions
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4
drivers/mtd/nand/raw/davinci_nand.c
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@ -739,8 +739,8 @@ static void davinci_nand_init(struct nand_chip *nand)
layout = &nand_keystone_rbl_4bit_layout_oobfirst;
layout->oobavail = 0;
for (i = 0; layout->oobfree[i].length &&
i < ARRAY_SIZE(layout->oobfree); i++)
for (i = 0; i < ARRAY_SIZE(layout->oobfree) &&
layout->oobfree[i].length; i++)
layout->oobavail += layout->oobfree[i].length;
nand->write_page = nand_davinci_write_page;