diff options
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/floppy.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 80483aac4cc..72803a3585f 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4388,11 +4388,15 @@ static int floppy_grab_irq_and_dma(void) if (fd_request_dma()) { DPRINT("Unable to grab DMA%d for the floppy driver\n", FLOPPY_DMA); - fd_free_irq(); - spin_lock_irqsave(&floppy_usage_lock, flags); - usage_count--; - spin_unlock_irqrestore(&floppy_usage_lock, flags); - return -1; + if (can_use_virtual_dma & 2) + use_virtual_dma = can_use_virtual_dma = 1; + if (!(can_use_virtual_dma & 1)) { + fd_free_irq(); + spin_lock_irqsave(&floppy_usage_lock, flags); + usage_count--; + spin_unlock_irqrestore(&floppy_usage_lock, flags); + return -1; + } } for (fdc = 0; fdc < N_FDC; fdc++) { |