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mtd: nand: return consistent error codes in ecc.correct() implementations

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The error code returned by the ecc.correct() are not consistent over the
all implementations.

Document the expected behavior in include/linux/mtd/nand.h and fix
offending implementations.

[Brian: this looks like a bugfix for the ECC reporting in the bf5xx_nand
driver, but we haven't seen any testing results for it]

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Franklin S Cooper Jr. <fcooper@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Boris BREZILLON
2015-12-30 20:32:03 +01:00
committed by Brian Norris
parent 6f357de854
commit 6e9411923b
11 changed files with 37 additions and 23 deletions
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2
drivers/mtd/nand/nand_ecc.c
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@@ -507,7 +507,7 @@ int __nand_correct_data(unsigned char *buf,
return 1; /* error in ECC data; no action needed */
pr_err("%s: uncorrectable ECC error\n", __func__);
return -1;
return -EBADMSG;
}
EXPORT_SYMBOL(__nand_correct_data);