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mtd: vf610_nfc: allow bitflips in an empty page

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Allow bit flips in a empty page up to half of the recoverable
bits (strength / 2).

Signed-off-by: Stefan Agner <stefan@agner.ch>
This commit is contained in:
Stefan Agner 2015-05-08 19:07:08 +02:00 committed by Scott Wood
parent 6fcfd1e890
commit d111bf99a8
1 changed files with 1 additions and 1 deletions
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2
drivers/mtd/nand/vf610_nfc.c
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@ -527,7 +527,7 @@ static inline int vf610_nfc_correct_data(struct mtd_info *mtd, u_char *dat)
flip = count_written_bits(dat, nfc->chip.ecc.size, ecc_count);
/* ECC failed. */
if (flip > ecc_count)
if (flip > ecc_count && flip > (nfc->chip.ecc.strength / 2))
return -1;
/* Erased page. */