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Date: Fri, 27 Apr 2018 15:59:08 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Laurent Vivier <lvivier@...hat.com>, Jens Axboe <axboe@...nel.dk>, Stan Johnson <userm57@...oo.com>, Finn Thain <fthain@...egraphics.com.au> Subject: [PATCH 4.16 66/81] block/swim: Check drive type 4.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Finn Thain <fthain@...egraphics.com.au> commit 8a500df63d07d8aee44b7ee2c54e462e47ce93ec upstream. 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@...hat.com> Cc: Jens Axboe <axboe@...nel.dk> Cc: stable@...r.kernel.org # v4.14+ Tested-by: Stan Johnson <userm57@...oo.com> Signed-off-by: Finn Thain <fthain@...egraphics.com.au> Acked-by: Laurent Vivier <lvivier@...hat.com> Signed-off-by: Jens Axboe <axboe@...nel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/block/swim.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/drivers/block/swim.c +++ b/drivers/block/swim.c @@ -834,10 +834,12 @@ static int swim_floppy_init(struct swim_ /* 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 */
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