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kernel: mtk-bmt: fix usage of _oob_read

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_oob_read returns number of bitflips on success while
bbt_nand_read should return 0.

Fixes: 2d49e49b18 ("mediatek: bmt: use generic mtd api")
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
(cherry picked from commit f183ce35b8ea2fd991ac489fb223b09a1ecb4db0)
This commit is contained in:
Chuanhong Guo 2023-01-21 10:47:59 +08:00
parent 28e1770a3b
commit 1f32774ded
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1 changed files with 7 additions and 1 deletions
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8
target/linux/generic/files/drivers/mtd/nand/mtk_bmt.h
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@ -95,8 +95,14 @@ bbt_nand_read(u32 page, unsigned char *dat, int dat_len,
.datbuf = dat,
.len = dat_len,
};
int ret;
return bmtd._read_oob(bmtd.mtd, page << bmtd.pg_shift, &ops);
ret = bmtd._read_oob(bmtd.mtd, page << bmtd.pg_shift, &ops);
if (ret < 0)
return ret;
if (ret)
pr_info("%s: %d bitflips\n", __func__, ret);
return 0;
}
static inline int bbt_nand_erase(u16 block)