Re: [PATCH v2] mtd: rawnand: make subop helpers return unsigned values

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A report from Colin Ian King pointed a CoverityScan issue where error values on these helpers where not checked in the drivers. These helpers can error out only in case of a software bug in driver code, not because of a runtime/hardware error. Hence, let's WARN_ON() in this case and return 0 which is harmless anyway.

Fixes: 8878b126df76 ("mtd: nand: add ->exec_op() implementation") Cc: stable@vger.kernel.org

Is it really worth backporting this patch? I mean, the bug does not exist, it's just a potential problem that can only arise when drivers/core are buggy, which AFAICT is not the case yet :-).

Ok, I'll remove the Cc: stable tag but I guess I can keep the Fixes one.

Sure.

Applied to nand/next without the cc:stable tag.