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46a9d97069
When handling SCSI command timeouts, if we had no actual command timeouts (either because the command was a deferred qc or the completion path won the race with ata_scsi_cmd_error_handler()), we do not need to go through a port error handling, as there was in fact no errors at all. Modify ata_scsi_cmd_error_handler() to return the number of commands that timed out and use this return value in ata_scsi_error() to call ata_scsi_port_error_handler() only if we had command timeouts, or if the port EH has already been scheduled due to failed commands. Otherwise, simply call scsi_eh_flush_done_q() to finish the completed commands without running the full port error handling. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Niklas Cassel <cassel@kernel.org>