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Coverity reported the following error: Assigned value that is never used may represent unnecessary computation. The rc variable was initially assigned a value but in several cases, when an error case is detected, it is reassigned a new value. The initial value had little use. In code-reviewing this routine, it could use some cleanup: - Setting the initialization value to -ENODEV is a much better choice and lessens code in the routine. - The wasn't tracking logic errors vs no error and mailbox failure. Better to resolve by adding a status to track the mailbox failure and merge it with the logic error when the routine returns. Link: https://lore.kernel.org/r/20200630215001.70793-2-jsmart2021@gmail.com Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>