Lines Matching refs:drive
240 * motor of these drives causes system hangs on some PCI computers. drive
241 * 0 is the low bit (0x1), and drive 7 is the high bit (0x80). Bits are on if
242 * a drive is allowed.
302 #define UNIT(x) ((x) & 0x03) /* drive on fdc */
303 #define FDC(x) (((x) & 0x04) >> 2) /* fdc of drive */
304 /* reverse mapping from unit and fdc to drive */
353 * this struct defines the different floppy drive types.
360 CMOS drive type
361 | Maximum data rate supported by drive type
413 * types (e.g. 360kB diskette in 1.2MB drive, etc.). Bit 1 of 'stretch'
605 static inline bool drive_no_geom(int drive)
607 return !current_type[drive] && !ITYPE(drive_state[drive].fd_device);
611 static inline int fd_eject(int drive)
672 static void __reschedule_timeout(int drive, const char *message)
676 if (drive < 0 || drive >= N_DRIVE) {
678 drive = 0;
680 delay = drive_params[drive].timeout;
683 if (drive_params[drive].flags & FD_DEBUG)
688 static void reschedule_timeout(int drive, const char *message)
693 __reschedule_timeout(drive, message);
717 * 2. No floppy disk is in the drive. This is done in order to ensure that
718 * requests are quickly flushed in case there is no disk in the drive. It
720 * the drive.
726 * change line is set, this means either that no disk is in the drive, or
733 static int disk_change(int drive)
735 int fdc = FDC(drive);
737 if (time_before(jiffies, drive_state[drive].select_date + drive_params[drive].select_delay))
739 if (!(fdc_state[fdc].dor & (0x10 << UNIT(drive))) ||
740 (fdc_state[fdc].dor & 3) != UNIT(drive) || fdc != FDC(drive)) {
741 DPRINT("probing disk change on unselected drive\n");
742 DPRINT("drive=%d fdc=%d dor=%x\n", drive, FDC(drive),
746 debug_dcl(drive_params[drive].flags,
747 "checking disk change line for drive %d\n", drive);
748 debug_dcl(drive_params[drive].flags, "jiffies=%lu\n", jiffies);
749 debug_dcl(drive_params[drive].flags, "disk change line=%x\n",
751 debug_dcl(drive_params[drive].flags, "flags=%lx\n",
752 drive_state[drive].flags);
754 if (drive_params[drive].flags & FD_BROKEN_DCL)
756 &drive_state[drive].flags);
757 if ((fdc_inb(fdc, FD_DIR) ^ drive_params[drive].flags) & 0x80) {
758 set_bit(FD_VERIFY_BIT, &drive_state[drive].flags);
761 if (drive_state[drive].maxblock) /* mark it changed */
763 &drive_state[drive].flags);
766 if (drive_state[drive].keep_data >= 0) {
767 if ((drive_params[drive].flags & FTD_MSG) &&
768 current_type[drive] != NULL)
770 current_type[drive] = NULL;
771 floppy_sizes[TOMINOR(drive)] = MAX_DISK_SIZE << 1;
776 drive_state[drive].last_checked = jiffies;
777 clear_bit(FD_DISK_NEWCHANGE_BIT, &drive_state[drive].flags);
796 unsigned char drive;
808 drive = REVDRIVE(fdc, unit);
809 debug_dcl(drive_params[drive].flags,
811 disk_change(drive);
818 drive = REVDRIVE(fdc, unit);
819 drive_state[drive].select_date = jiffies;
825 static void twaddle(int fdc, int drive)
827 if (drive_params[drive].select_delay)
829 fdc_outb(fdc_state[fdc].dor & ~(0x10 << UNIT(drive)),
832 drive_state[drive].select_date = jiffies;
841 int drive;
847 for (drive = 0; drive < N_DRIVE; drive++)
848 if (FDC(drive) == fdc &&
849 (mode || drive_state[drive].track != NEED_1_RECAL))
850 drive_state[drive].track = NEED_2_RECAL;
854 * selects the fdc and drive, and enables the fdc's input/dma.
855 * Both current_drive and current_fdc are changed to match the new drive.
857 static void set_fdc(int drive)
861 if (drive < 0 || drive >= N_DRIVE) {
862 pr_info("bad drive value %d\n", drive);
866 fdc = FDC(drive);
881 current_drive = drive;
887 * Both current_drive and current_fdc are changed to match the new drive.
889 static int lock_fdc(int drive)
900 reschedule_timeout(drive, "lock fdc");
901 set_fdc(drive);
933 static void floppy_off(unsigned int drive)
936 int fdc = FDC(drive);
938 if (!(fdc_state[fdc].dor & (0x10 << UNIT(drive))))
941 del_timer(motor_off_timer + drive);
945 if (drive_params[drive].rps) {
946 delta = jiffies - drive_state[drive].first_read_date + HZ -
947 drive_params[drive].spindown_offset;
948 delta = ((delta * drive_params[drive].rps) % HZ) / drive_params[drive].rps;
949 motor_off_timer[drive].expires =
950 jiffies + drive_params[drive].spindown - delta;
952 add_timer(motor_off_timer + drive);
957 * stopping at current drive. This is done before any long operation, to
963 int drive;
971 drive = (saved_drive + i + 1) % N_DRIVE;
972 if (drive_state[drive].fd_ref == 0 || drive_params[drive].select_delay != 0)
974 set_fdc(drive);
975 if (!(set_dor(current_fdc, ~3, UNIT(drive) | (0x10 << UNIT(drive))) &
976 (0x10 << UNIT(drive))))
979 set_dor(current_fdc, ~(0x10 << UNIT(drive)), 0);
1021 /* this function makes sure that the disk stays in the drive during the
1279 static void fdc_specify(int fdc, int drive)
1308 output_byte(fdc, UNIT(drive));
1325 srt = 16 - DIV_ROUND_UP(drive_params[drive].srt * scale_dtr / 1000,
1333 hlt = DIV_ROUND_UP(drive_params[drive].hlt * scale_dtr / 2,
1340 hut = DIV_ROUND_UP(drive_params[drive].hut * scale_dtr / 16,
1360 /* Set the FDC's data transfer rate on behalf of the specified drive.
1373 /* TODO: some FDC/drive combinations (C&T 82C711 with TEAC 1.2MB)
1567 static void check_wp(int fdc, int drive)
1569 if (test_bit(FD_VERIFY_BIT, &drive_state[drive].flags)) {
1572 output_byte(fdc, UNIT(drive));
1577 clear_bit(FD_VERIFY_BIT, &drive_state[drive].flags);
1579 &drive_state[drive].flags);
1580 debug_dcl(drive_params[drive].flags,
1582 debug_dcl(drive_params[drive].flags, "wp=%x\n",
1586 &drive_state[drive].flags);
1589 &drive_state[drive].flags);
1606 * the drive.
1663 * reached track 0. Probably no drive. Raise an
1782 * Must do 4 FD_SENSEIs after reset because of ``drive polling''.
1882 /* avoid dma going to a random drive after shutdown */
1908 /* no read since this drive is running */
1942 * drive/controller combinations */
2069 static int next_valid_format(int drive)
2073 probed_format = drive_state[drive].probed_format;
2076 !drive_params[drive].autodetect[probed_format]) {
2077 drive_state[drive].probed_format = 0;
2080 if (floppy_type[drive_params[drive].autodetect[probed_format]].sect) {
2081 drive_state[drive].probed_format = probed_format;
2107 static void set_floppy(int drive)
2109 int type = ITYPE(drive_state[drive].fd_device);
2114 _floppy = current_type[drive];
2225 static int do_format(int drive, struct format_descr *tmp_format_req)
2229 if (lock_fdc(drive))
2232 set_floppy(drive);
2260 unsigned int drive = (unsigned long)req->q->disk->private_data;
2270 floppy_off(drive);
2670 buffer_drive != current_drive || /* bad drive */
2723 pr_info("buffer drive=%d\n", buffer_drive);
2772 int drive;
2792 drive = (long)current_req->q->disk->private_data;
2793 set_fdc(drive);
2796 set_floppy(drive);
2924 * Resets the FDC connected to drive <drive>.
2925 * Both current_drive and current_fdc are changed to match the new drive.
2927 static int user_reset_fdc(int drive, int arg, bool interruptible)
2931 if (lock_fdc(drive))
2965 static const char *drive_name(int type, int drive)
2972 if (drive_params[drive].native_format)
2973 floppy = floppy_type + drive_params[drive].native_format;
3137 int drive;
3143 for (drive = 0; drive < N_DRIVE; drive++) {
3144 if (FDC(drive) != current_fdc)
3146 if (drive == current_drive) {
3147 if (drive_state[drive].fd_ref > 1) {
3151 } else if (drive_state[drive].fd_ref) {
3184 static int floppy_raw_cmd_ioctl(int type, int drive, int cmd,
3193 if (lock_fdc(drive))
3195 set_floppy(drive);
3205 static int floppy_raw_cmd_ioctl(int type, int drive, int cmd,
3224 int drive, int type, struct block_device *bdev)
3235 g->track <= 0 || g->track > drive_params[drive].tracks >> STRETCH(g) ||
3243 if (lock_fdc(drive)) {
3264 if (lock_fdc(drive))
3273 user_params[drive] = *g;
3274 if (buffer_drive == drive)
3275 SUPBOUND(buffer_max, user_params[drive].sect);
3276 current_type[drive] = &user_params[drive];
3277 floppy_sizes[drive] = user_params[drive].size;
3287 if (drive_state[current_drive].maxblock > user_params[drive].sect ||
3289 ((user_params[drive].sect ^ oldStretch) &
3345 static int get_floppy_geometry(int drive, int type, struct floppy_struct **g)
3350 if (lock_fdc(drive))
3355 *g = current_type[drive];
3364 int drive = (long)bdev->bd_disk->private_data;
3365 int type = ITYPE(drive_state[drive].fd_device);
3369 ret = get_floppy_geometry(drive, type, &g);
3400 int drive = (long)bdev->bd_disk->private_data;
3401 int type = ITYPE(drive_state[drive].fd_device);
3449 if (drive_state[drive].fd_ref != 1)
3450 /* somebody else has this drive open */
3452 if (lock_fdc(drive))
3457 ret = fd_eject(UNIT(drive));
3459 set_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags);
3460 set_bit(FD_VERIFY_BIT, &drive_state[drive].flags);
3464 if (lock_fdc(drive))
3466 current_type[drive] = NULL;
3467 floppy_sizes[drive] = MAX_DISK_SIZE << 1;
3468 drive_state[drive].keep_data = 0;
3472 return set_geometry(cmd, &inparam.g, drive, type, bdev);
3474 ret = get_floppy_geometry(drive, type,
3483 drive_params[drive].flags |= FTD_MSG;
3486 drive_params[drive].flags &= ~FTD_MSG;
3489 if (lock_fdc(drive))
3493 ret = drive_state[drive].flags;
3501 if (drive_state[drive].fd_ref != 1)
3503 return do_format(drive, &inparam.f);
3506 if (lock_fdc(drive))
3510 drive_params[drive].max_errors.reporting = (unsigned short)(param & 0x0f);
3513 outparam = &drive_params[drive].max_errors;
3516 drive_params[drive].max_errors = inparam.max_errors;
3519 outparam = drive_name(type, drive);
3526 drive_params[drive] = inparam.dp;
3529 outparam = &drive_params[drive];
3532 if (lock_fdc(drive))
3539 outparam = &drive_state[drive];
3542 return user_reset_fdc(drive, (int)param, true);
3544 outparam = &fdc_state[FDC(drive)];
3547 memset(&write_errors[drive], 0, sizeof(write_errors[drive]));
3550 outparam = &write_errors[drive];
3553 return floppy_raw_cmd_ioctl(type, drive, cmd, (void __user *)param);
3555 if (lock_fdc(drive))
3662 int drive, type;
3676 drive = (long)bdev->bd_disk->private_data;
3677 type = ITYPE(drive_state[drive].fd_device);
3679 &v, drive, type, bdev);
3684 static int compat_get_prm(int drive,
3693 err = get_floppy_geometry(drive, ITYPE(drive_state[drive].fd_device),
3706 static int compat_setdrvprm(int drive,
3718 drive_params[drive].cmos = v.cmos;
3719 drive_params[drive].max_dtr = v.max_dtr;
3720 drive_params[drive].hlt = v.hlt;
3721 drive_params[drive].hut = v.hut;
3722 drive_params[drive].srt = v.srt;
3723 drive_params[drive].spinup = v.spinup;
3724 drive_params[drive].spindown = v.spindown;
3725 drive_params[drive].spindown_offset = v.spindown_offset;
3726 drive_params[drive].select_delay = v.select_delay;
3727 drive_params[drive].rps = v.rps;
3728 drive_params[drive].tracks = v.tracks;
3729 drive_params[drive].timeout = v.timeout;
3730 drive_params[drive].interleave_sect = v.interleave_sect;
3731 drive_params[drive].max_errors = v.max_errors;
3732 drive_params[drive].flags = v.flags;
3733 drive_params[drive].read_track = v.read_track;
3734 memcpy(drive_params[drive].autodetect, v.autodetect,
3736 drive_params[drive].checkfreq = v.checkfreq;
3737 drive_params[drive].native_format = v.native_format;
3742 static int compat_getdrvprm(int drive,
3749 v.cmos = drive_params[drive].cmos;
3750 v.max_dtr = drive_params[drive].max_dtr;
3751 v.hlt = drive_params[drive].hlt;
3752 v.hut = drive_params[drive].hut;
3753 v.srt = drive_params[drive].srt;
3754 v.spinup = drive_params[drive].spinup;
3755 v.spindown = drive_params[drive].spindown;
3756 v.spindown_offset = drive_params[drive].spindown_offset;
3757 v.select_delay = drive_params[drive].select_delay;
3758 v.rps = drive_params[drive].rps;
3759 v.tracks = drive_params[drive].tracks;
3760 v.timeout = drive_params[drive].timeout;
3761 v.interleave_sect = drive_params[drive].interleave_sect;
3762 v.max_errors = drive_params[drive].max_errors;
3763 v.flags = drive_params[drive].flags;
3764 v.read_track = drive_params[drive].read_track;
3765 memcpy(v.autodetect, drive_params[drive].autodetect,
3767 v.checkfreq = drive_params[drive].checkfreq;
3768 v.native_format = drive_params[drive].native_format;
3776 static int compat_getdrvstat(int drive, bool poll,
3785 if (lock_fdc(drive))
3791 v.spinup_date = drive_state[drive].spinup_date;
3792 v.select_date = drive_state[drive].select_date;
3793 v.first_read_date = drive_state[drive].first_read_date;
3794 v.probed_format = drive_state[drive].probed_format;
3795 v.track = drive_state[drive].track;
3796 v.maxblock = drive_state[drive].maxblock;
3797 v.maxtrack = drive_state[drive].maxtrack;
3798 v.generation = drive_state[drive].generation;
3799 v.keep_data = drive_state[drive].keep_data;
3800 v.fd_ref = drive_state[drive].fd_ref;
3801 v.fd_device = drive_state[drive].fd_device;
3802 v.last_checked = drive_state[drive].last_checked;
3803 v.dmabuf = (uintptr_t) drive_state[drive].dmabuf;
3804 v.bufblocks = drive_state[drive].bufblocks;
3815 static int compat_getfdcstat(int drive,
3822 v = fdc_state[FDC(drive)];
3844 static int compat_werrorget(int drive,
3852 v = write_errors[drive];
3868 int drive = (long)bdev->bd_disk->private_data;
3896 return compat_get_prm(drive, compat_ptr(param));
3898 return compat_setdrvprm(drive, compat_ptr(param));
3900 return compat_getdrvprm(drive, compat_ptr(param));
3902 return compat_getdrvstat(drive, true, compat_ptr(param));
3904 return compat_getdrvstat(drive, false, compat_ptr(param));
3906 return compat_getfdcstat(drive, compat_ptr(param));
3908 return compat_werrorget(drive, compat_ptr(param));
3917 int drive;
3919 /* read drive info out of physical CMOS */
3920 drive = 0;
3921 if (!drive_params[drive].cmos)
3922 drive_params[drive].cmos = FLOPPY0_TYPE;
3923 drive = 1;
3924 if (!drive_params[drive].cmos)
3925 drive_params[drive].cmos = FLOPPY1_TYPE;
3927 /* FIXME: additional physical CMOS drive detection should go here */
3929 for (drive = 0; drive < N_DRIVE; drive++) {
3930 unsigned int type = drive_params[drive].cmos;
3939 allowed_drive_mask |= 1 << drive;
3941 allowed_drive_mask &= ~(1 << drive);
3953 pr_info("Floppy drive(s):");
3958 pr_cont("%s fd%d is %s", prepend, drive, name);
3960 drive_params[drive] = *params;
3969 int drive = (long)disk->private_data;
3973 if (!drive_state[drive].fd_ref--) {
3975 drive_state[drive].fd_ref = 0;
3977 if (!drive_state[drive].fd_ref)
3978 opened_disk[drive] = NULL;
3986 * drive with different device numbers.
3990 int drive = (long)disk->private_data;
3998 old_dev = drive_state[drive].fd_device;
3999 if (opened_disk[drive] && opened_disk[drive] != disk)
4002 if (!drive_state[drive].fd_ref && (drive_params[drive].flags & FD_BROKEN_DCL)) {
4003 set_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags);
4004 set_bit(FD_VERIFY_BIT, &drive_state[drive].flags);
4007 drive_state[drive].fd_ref++;
4009 opened_disk[drive] = disk;
4014 /* if opening an ED drive, reserve a big buffer,
4016 if ((drive_params[drive].cmos == 6) || (drive_params[drive].cmos == 5))
4044 drive_state[drive].fd_device = new_dev;
4045 set_capacity(disks[drive][ITYPE(new_dev)], floppy_sizes[new_dev]);
4047 if (buffer_drive == drive)
4051 if (fdc_state[FDC(drive)].rawcmd == 1)
4052 fdc_state[FDC(drive)].rawcmd = 2;
4055 drive_state[drive].last_checked = 0;
4057 &drive_state[drive].flags);
4060 if (test_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags))
4062 if (test_bit(FD_OPEN_SHOULD_FAIL_BIT, &drive_state[drive].flags))
4067 !test_bit(FD_DISK_WRITABLE_BIT, &drive_state[drive].flags))
4074 drive_state[drive].fd_ref--;
4076 if (!drive_state[drive].fd_ref)
4077 opened_disk[drive] = NULL;
4090 int drive = (long)disk->private_data;
4092 if (test_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags) ||
4093 test_bit(FD_VERIFY_BIT, &drive_state[drive].flags))
4096 if (time_after(jiffies, drive_state[drive].last_checked + drive_params[drive].checkfreq)) {
4097 if (lock_fdc(drive))
4103 if (test_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags) ||
4104 test_bit(FD_VERIFY_BIT, &drive_state[drive].flags) ||
4105 test_bit(drive, &fake_change) ||
4106 drive_no_geom(drive))
4114 * a disk in the drive, and whether that disk is writable.
4118 int drive;
4125 int drive = cbdata->drive;
4130 set_bit(FD_OPEN_SHOULD_FAIL_BIT, &drive_state[drive].flags);
4135 static int __floppy_read_block_0(struct block_device *bdev, int drive)
4148 cbdata.drive = drive;
4172 * there is a disk in the drive at all... Thus we also do it for fixed
4176 int drive = (long)disk->private_data;
4180 if (test_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags) ||
4181 test_bit(FD_VERIFY_BIT, &drive_state[drive].flags) ||
4182 test_bit(drive, &fake_change) ||
4183 drive_no_geom(drive)) {
4188 res = lock_fdc(drive);
4191 cf = (test_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags) ||
4192 test_bit(FD_VERIFY_BIT, &drive_state[drive].flags));
4193 if (!(cf || test_bit(drive, &fake_change) || drive_no_geom(drive))) {
4197 drive_state[drive].maxblock = 0;
4198 drive_state[drive].maxtrack = 0;
4199 if (buffer_drive == drive)
4201 clear_bit(drive, &fake_change);
4202 clear_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags);
4204 drive_state[drive].generation++;
4205 if (drive_no_geom(drive)) {
4207 res = __floppy_read_block_0(opened_disk[drive]->part0,
4208 drive);
4215 set_capacity(disk, floppy_sizes[drive_state[drive].fd_device]);
4359 DPRINT("bad drive for set_cmos\n");
4452 int drive;
4454 drive = p->id;
4455 return sprintf(buf, "%X\n", drive_params[drive].cmos);
4503 static bool floppy_available(int drive)
4505 if (!(allowed_drive_mask & (1 << drive)))
4507 if (fdc_state[FDC(drive)].version == FDC_NONE)
4512 static int floppy_alloc_disk(unsigned int drive, unsigned int type)
4516 disk = blk_mq_alloc_disk(&tag_sets[drive], NULL);
4522 disk->first_minor = TOMINOR(drive) | (type << 2);
4528 sprintf(disk->disk_name, "fd%d_type%d", drive, type);
4530 sprintf(disk->disk_name, "fd%d", drive);
4532 disk->private_data = (void *)(long)drive;
4535 disks[drive][type] = disk;
4543 unsigned int drive = (MINOR(dev) & 3) | ((MINOR(dev) & 0x80) >> 5);
4546 if (drive >= N_DRIVE || !floppy_available(drive) ||
4551 if (disks[drive][type])
4553 if (floppy_alloc_disk(drive, type))
4555 if (add_disk(disks[drive][type]))
4562 put_disk(disks[drive][type]);
4563 disks[drive][type] = NULL;
4569 int i, unit, drive, err;
4585 for (drive = 0; drive < N_DRIVE; drive++) {
4586 memset(&tag_sets[drive], 0, sizeof(tag_sets[drive]));
4587 tag_sets[drive].ops = &floppy_mq_ops;
4588 tag_sets[drive].nr_hw_queues = 1;
4589 tag_sets[drive].nr_maps = 1;
4590 tag_sets[drive].queue_depth = 2;
4591 tag_sets[drive].numa_node = NUMA_NO_NODE;
4592 tag_sets[drive].flags = BLK_MQ_F_SHOULD_MERGE;
4593 err = blk_mq_alloc_tag_set(&tag_sets[drive]);
4597 err = floppy_alloc_disk(drive, 0);
4599 blk_mq_free_tag_set(&tag_sets[drive]);
4603 timer_setup(&motor_off_timer[drive], motor_off_callback, 0);
4655 /* initialise drive state */
4656 for (drive = 0; drive < N_DRIVE; drive++) {
4657 memset(&drive_state[drive], 0, sizeof(drive_state[drive]));
4658 memset(&write_errors[drive], 0, sizeof(write_errors[drive]));
4659 set_bit(FD_DISK_NEWCHANGE_BIT, &drive_state[drive].flags);
4660 set_bit(FD_DISK_CHANGED_BIT, &drive_state[drive].flags);
4661 set_bit(FD_VERIFY_BIT, &drive_state[drive].flags);
4662 drive_state[drive].fd_device = -1;
4716 for (drive = 0; drive < N_DRIVE; drive++) {
4717 if (!floppy_available(drive))
4720 floppy_device[drive].name = floppy_device_name;
4721 floppy_device[drive].id = drive;
4722 floppy_device[drive].dev.release = floppy_device_release;
4723 floppy_device[drive].dev.groups = floppy_dev_groups;
4725 err = platform_device_register(&floppy_device[drive]);
4729 registered[drive] = true;
4731 err = device_add_disk(&floppy_device[drive].dev,
4732 disks[drive][0], NULL);
4740 while (drive--) {
4741 if (floppy_available(drive)) {
4742 del_gendisk(disks[drive][0]);
4743 if (registered[drive])
4744 platform_device_unregister(&floppy_device[drive]);
4756 for (drive = 0; drive < N_DRIVE; drive++) {
4757 if (!disks[drive][0])
4759 del_timer_sync(&motor_off_timer[drive]);
4760 put_disk(disks[drive][0]);
4761 blk_mq_free_tag_set(&tag_sets[drive]);
4897 int drive;
4925 for (drive = 0; drive < N_FDC * 4; drive++)
4926 if (timer_pending(motor_off_timer + drive))
4927 pr_info("motor off timer %d still active\n", drive);
4972 int drive, i;
4979 for (drive = 0; drive < N_DRIVE; drive++) {
4980 del_timer_sync(&motor_off_timer[drive]);
4982 if (floppy_available(drive)) {
4984 if (disks[drive][i])
4985 del_gendisk(disks[drive][i]);
4987 if (registered[drive])
4988 platform_device_unregister(&floppy_device[drive]);
4991 if (disks[drive][i])
4992 put_disk(disks[drive][i]);
4994 blk_mq_free_tag_set(&tag_sets[drive]);