diff options
Diffstat (limited to 'drivers/mtd/nand/spi/core.c')
-rw-r--r-- | drivers/mtd/nand/spi/core.c | 40 |
1 files changed, 26 insertions, 14 deletions
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c index 018c854d0619..1f468ed93c8e 100644 --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -630,25 +630,20 @@ static int spinand_write_page(struct spinand_device *spinand, return nand_ecc_finish_io_req(nand, (struct nand_page_io_req *)req); } -static int spinand_mtd_read(struct mtd_info *mtd, loff_t from, - struct mtd_oob_ops *ops) +static int spinand_mtd_regular_page_read(struct mtd_info *mtd, loff_t from, + struct mtd_oob_ops *ops, + unsigned int *max_bitflips) { struct spinand_device *spinand = mtd_to_spinand(mtd); struct nand_device *nand = mtd_to_nanddev(mtd); - struct mtd_ecc_stats old_stats; - unsigned int max_bitflips = 0; struct nand_io_iter iter; bool disable_ecc = false; bool ecc_failed = false; - int ret = 0; + int ret; - if (ops->mode == MTD_OPS_RAW || !spinand->eccinfo.ooblayout) + if (ops->mode == MTD_OPS_RAW || !mtd->ooblayout) disable_ecc = true; - mutex_lock(&spinand->lock); - - old_stats = mtd->ecc_stats; - nanddev_io_for_each_page(nand, NAND_PAGE_READ, from, ops, &iter) { if (disable_ecc) iter.req.mode = MTD_OPS_RAW; @@ -664,13 +659,33 @@ static int spinand_mtd_read(struct mtd_info *mtd, loff_t from, if (ret == -EBADMSG) ecc_failed = true; else - max_bitflips = max_t(unsigned int, max_bitflips, ret); + *max_bitflips = max_t(unsigned int, *max_bitflips, ret); ret = 0; ops->retlen += iter.req.datalen; ops->oobretlen += iter.req.ooblen; } + if (ecc_failed && !ret) + ret = -EBADMSG; + + return ret; +} + +static int spinand_mtd_read(struct mtd_info *mtd, loff_t from, + struct mtd_oob_ops *ops) +{ + struct spinand_device *spinand = mtd_to_spinand(mtd); + struct mtd_ecc_stats old_stats; + unsigned int max_bitflips = 0; + int ret; + + mutex_lock(&spinand->lock); + + old_stats = mtd->ecc_stats; + + ret = spinand_mtd_regular_page_read(mtd, from, ops, &max_bitflips); + if (ops->stats) { ops->stats->uncorrectable_errors += mtd->ecc_stats.failed - old_stats.failed; @@ -680,9 +695,6 @@ static int spinand_mtd_read(struct mtd_info *mtd, loff_t from, mutex_unlock(&spinand->lock); - if (ecc_failed && !ret) - ret = -EBADMSG; - return ret ? ret : max_bitflips; } |