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| author | Miquel Raynal <miquel.raynal@free-electrons.com> | 2017-11-30 18:01:28 +0100 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2017-12-01 09:45:30 +0100 |
| commit | eb94555e9e97c9983461214046b4d72c4ab4ba70 (patch) | |
| tree | 893c38b87729a5ff36f9badf7443ca5ae7d564be /drivers | |
| parent | 8a8c8ba1c8a65522f07fd3ccbae94712c471e683 (diff) | |
| download | linux-stable-eb94555e9e97c9983461214046b4d72c4ab4ba70.tar.gz linux-stable-eb94555e9e97c9983461214046b4d72c4ab4ba70.tar.bz2 linux-stable-eb94555e9e97c9983461214046b4d72c4ab4ba70.zip | |
mtd: nand: use usual return values for the ->erase() hook
Avoid using specific defined values for checking returned status of the
->erase() hook. Instead, use usual negative error values on failure,
zero otherwise.
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/denali.c | 2 | ||||
| -rw-r--r-- | drivers/mtd/nand/docg4.c | 7 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 10 |
3 files changed, 15 insertions, 4 deletions
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index 34008a02ddb0..3e19861a46c6 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -951,7 +951,7 @@ static int denali_erase(struct mtd_info *mtd, int page) irq_status = denali_wait_for_irq(denali, INTR__ERASE_COMP | INTR__ERASE_FAIL); - return irq_status & INTR__ERASE_COMP ? 0 : NAND_STATUS_FAIL; + return irq_status & INTR__ERASE_COMP ? 0 : -EIO; } static int denali_setup_data_interface(struct mtd_info *mtd, int chipnr, diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index 2436cbc71662..45c01b4b34c7 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -900,6 +900,7 @@ static int docg4_erase_block(struct mtd_info *mtd, int page) struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; uint16_t g4_page; + int status; dev_dbg(doc->dev, "%s: page %04x\n", __func__, page); @@ -939,7 +940,11 @@ static int docg4_erase_block(struct mtd_info *mtd, int page) poll_status(doc); write_nop(docptr); - return nand->waitfunc(mtd, nand); + status = nand->waitfunc(mtd, nand); + if (status < 0) + return status; + + return status & NAND_STATUS_FAIL ? -EIO : 0; } static int write_page(struct mtd_info *mtd, struct nand_chip *nand, diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 630048f5abdc..eacc3f39cafd 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2989,11 +2989,17 @@ out: static int single_erase(struct mtd_info *mtd, int page) { struct nand_chip *chip = mtd_to_nand(mtd); + int status; + /* Send commands to erase a block */ chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page); chip->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1); - return chip->waitfunc(mtd, chip); + status = chip->waitfunc(mtd, chip); + if (status < 0) + return status; + + return status & NAND_STATUS_FAIL ? -EIO : 0; } /** @@ -3077,7 +3083,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, status = chip->erase(mtd, page & chip->pagemask); /* See if block erase succeeded */ - if (status & NAND_STATUS_FAIL) { + if (status) { pr_debug("%s: failed erase, page 0x%08x\n", __func__, page); instr->state = MTD_ERASE_FAILED; |