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 <[EMAIL PROTECTED]>
---
drivers/ide/pci/pdc202xx_old.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
Index: b/drivers/ide/pci/pdc202xx_old.c
===================================================================
--- a/drivers/ide/pci/pdc202xx_old.c
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/ide/pci/pdc202xx_old.c Version 0.50 Mar 3, 2007
+ * linux/drivers/ide/pci/pdc202xx_old.c Version 0.51 Jul 27, 2007
*
* Copyright (C) 1998-2002 Andre Hedrick <[EMAIL PROTECTED]>
* Copyright (C) 2006-2007 MontaVista Software, Inc.
@@ -335,15 +335,18 @@ static void __devinit init_hwif_pdc202xx
if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246)
hwif->resetproc = &pdc202xx_reset;
+ hwif->err_stops_fifo = 1;
+
hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
+ if (hwif->dma_base == 0)
+ return;
+
hwif->ultra_mask = hwif->cds->udma_mask;
hwif->mwdma_mask = 0x07;
hwif->swdma_mask = 0x07;
hwif->atapi_dma = 1;
- hwif->err_stops_fifo = 1;
-
hwif->ide_dma_check = &pdc202xx_config_drive_xfer_rate;
hwif->dma_lost_irq = &pdc202xx_dma_lost_irq;
hwif->dma_timeout = &pdc202xx_dma_timeout;
-
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