atapi: Report correct errors on guest eject request
Table 629 of the MMC-5 spec mentions two different error conditions when a CDROM eject is requested: a) while a disc is inserted and b) while a disc is not inserted. Ensure we return the appropriate error for the present condition of the drive and disc status. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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				@ -1304,7 +1304,7 @@ static void ide_atapi_cmd(IDEState *s)
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        break;
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					        break;
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    case GPCMD_START_STOP_UNIT:
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					    case GPCMD_START_STOP_UNIT:
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        {
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					        {
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            int start, eject, err = 0;
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					            int start, eject, sense, err = 0;
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            start = packet[4] & 1;
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					            start = packet[4] & 1;
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            eject = (packet[4] >> 1) & 1;
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					            eject = (packet[4] >> 1) & 1;
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@ -1317,7 +1317,11 @@ static void ide_atapi_cmd(IDEState *s)
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                ide_atapi_cmd_ok(s);
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					                ide_atapi_cmd_ok(s);
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                break;
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					                break;
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            case -EBUSY:
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					            case -EBUSY:
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                ide_atapi_cmd_error(s, SENSE_NOT_READY,
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					                sense = SENSE_NOT_READY;
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					                if (bdrv_is_inserted(s->bs)) {
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					                    sense = SENSE_ILLEGAL_REQUEST;
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					                }
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					                ide_atapi_cmd_error(s, sense,
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                                    ASC_MEDIA_REMOVAL_PREVENTED);
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					                                    ASC_MEDIA_REMOVAL_PREVENTED);
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                break;
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					                break;
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            default:
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					            default:
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