Brian Norris 167a8d5250
mtd: nand: report ECC errors properly when reading BBT ...
Instead of just printing a warning when encountering ECC errors, we
should return a proper error status and print a more informative
warning. Later, we will handle these error messages in the upper layers
of the BBT scan.
Note that this patch makes our check for ECC error codes a little bit
more restrictive, leaving all unrecognized errors to the generic "else"
clause. This shouldn't cause problems and could even be a benefit.
This code is based on some findings reported by Matthieu Castet.
Reported-by: Matthieu CASTET <matthieu.castet@parrot.com >
Signed-off-by: Brian Norris <computersforpeace@gmail.com >
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com >
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