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mtd: nand: fix error handling in nand_prog_page_op() #1

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On success chip->legacy.waitfunc() returns the NAND status byte, but on
failure it returns a negative error code. This was never tested for and
instead the return value was interpreted as NAND status without error
checking. Add the missing error check.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210205142725.13225-1-s.hauer@pengutronix.de
This commit is contained in:
Sascha Hauer 2021-02-05 15:27:24 +01:00 • committed by Miquel Raynal
parent 0646493edd
commit ec9e0203a3
1 changed files with 2 additions and 0 deletions
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2
drivers/mtd/nand/raw/nand_base.c
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@ -1466,6 +1466,8 @@ int nand_prog_page_op(struct nand_chip *chip, unsigned int page,
chip->legacy.write_buf(chip, buf, len);
chip->legacy.cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
status = chip->legacy.waitfunc(chip);
if (status < 0)
return status;
}
if (status & NAND_STATUS_FAIL)