mtd: docg4: ecc.read_page() returns 0 on uncorrectable errors
Currently the docg4's ecc.read_page() method returns -EBADMSG when
uncorrectable bitflips occur. This is wrong; 0 should be returned in
this case. An error code should only be returned by this method in the
case of a hardware error (probably -EIO).
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c
index 793921e..799da5d 100644
--- a/drivers/mtd/nand/docg4.c
+++ b/drivers/mtd/nand/docg4.c
@@ -776,6 +776,8 @@
}
writew(0, docptr + DOC_DATAEND);
+ if (bits_corrected == -EBADMSG) /* uncorrectable errors */
+ return 0;
return bits_corrected;
}