[PATCH] libata: Fixup ata_sas_queuecmd to handle __ata_scsi_queuecmd failure

 *	@ap:	ATA port to which the command is being sent

 *

 *	RETURNS:

 *	Zero.

 *	Return value from __ata_scsi_queuecmd() if @cmd can be queued,

 *	0 otherwise.

 */

int ata_sas_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *),

		     struct ata_port *ap)

{

	int rc = 0;

	ata_scsi_dump_cdb(ap, cmd);

	if (likely(ata_scsi_dev_enabled(ap->device)))

		__ata_scsi_queuecmd(cmd, done, ap->device);

		rc = __ata_scsi_queuecmd(cmd, done, ap->device);

	else {

		cmd->result = (DID_BAD_TARGET << 16);

		done(cmd);

	}

	return 0;

	return rc;

}

EXPORT_SYMBOL_GPL(ata_sas_queuecmd);