From e98d6e50be87c1ad2df81f73c7442cf631d6f931 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 20 Aug 2007 22:42:56 +0200 Subject: [PATCH] pdc202xx_old: add missing ->dma_base check If ->dma_base is not set (== PCI BAR4 cannot be reserved) then DMA hooks shouldn't be initialized or bad things will happen. Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/pdc202xx_old.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c index fbcb0bb9c9..e19a891171 100644 --- 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 * Copyright (C) 2006-2007 MontaVista Software, Inc. @@ -337,15 +337,18 @@ static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif) hwif->speedproc = &pdc202xx_tune_chipset; + 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; -- 2.39.5