If ->dma_base is not set (== PCI BAR4 cannot be reserved) then DMA hooks shouldn't be initialized or bad things will happen. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> --- drivers/ide/pci/triflex.c | 3 +++ 1 file changed, 3 insertions(+) Index: b/drivers/ide/pci/triflex.c =================================================================== --- a/drivers/ide/pci/triflex.c +++ b/drivers/ide/pci/triflex.c @@ -111,6 +111,9 @@ static void __devinit init_hwif_triflex( hwif->set_pio_mode = &triflex_set_pio_mode; hwif->set_dma_mode = &triflex_set_mode; + if (hwif->dma_base == 0) + return; + hwif->atapi_dma = 1; hwif->mwdma_mask = 0x07; hwif->swdma_mask = 0x07; - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html