diff options
| author | Finn Thain <fthain@telegraphics.com.au> | 2018-04-11 20:50:14 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-04-16 21:49:35 -0600 |
| commit | 8a500df63d07d8aee44b7ee2c54e462e47ce93ec (patch) | |
| tree | b2f60b2e70d432e6c2a292a212a6e568f2617400 /drivers/block/swim.c | |
| parent | 56a1c5ee54f69dd767fb61d301883dc919ddc259 (diff) | |
| download | lwn-8a500df63d07d8aee44b7ee2c54e462e47ce93ec.tar.gz lwn-8a500df63d07d8aee44b7ee2c54e462e47ce93ec.zip | |
block/swim: Check drive type
The SWIM chip is compatible with GCR-mode Sony 400K/800K drives but
this driver only supports MFM mode. Therefore only Sony FDHD drives
are supported. Skip incompatible drives.
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org # v4.14+
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/swim.c')
| -rw-r--r-- | drivers/block/swim.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/block/swim.c b/drivers/block/swim.c index d1ee4670666a..c8c8b9da3edd 100644 --- a/drivers/block/swim.c +++ b/drivers/block/swim.c @@ -829,10 +829,12 @@ static int swim_floppy_init(struct swim_priv *swd) /* scan floppy drives */ swim_drive(base, INTERNAL_DRIVE); - if (swim_readbit(base, DRIVE_PRESENT)) + if (swim_readbit(base, DRIVE_PRESENT) && + !swim_readbit(base, ONEMEG_DRIVE)) swim_add_floppy(swd, INTERNAL_DRIVE); swim_drive(base, EXTERNAL_DRIVE); - if (swim_readbit(base, DRIVE_PRESENT)) + if (swim_readbit(base, DRIVE_PRESENT) && + !swim_readbit(base, ONEMEG_DRIVE)) swim_add_floppy(swd, EXTERNAL_DRIVE); /* register floppy drives */ |