ubifs: ensure zero err is returned on successful return
err is no longer being set on a successful return path, causing a garbage value being returned. Fix this by setting err to zero for the successful return path. Found with static analysis by CoverityScan, CID 1389473 Fixes: 7799953b ("ubifs: Implement encrypt/decrypt for all IO") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Richard Weinberger <richard@nod.at>
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