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triflex: add missing ->dma_base check

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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 <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-08-20 22:42:56 +02:00
parent e98d6e50be
commit 88b47040f8
1 changed files with 3 additions and 0 deletions
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3
drivers/ide/pci/triflex.c
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@ -115,6 +115,9 @@ static void __devinit init_hwif_triflex(ide_hwif_t *hwif)
hwif->tuneproc = &triflex_tune_drive;
hwif->speedproc = &triflex_tune_chipset;
if (hwif->dma_base == 0)
return;
hwif->atapi_dma = 1;
hwif->mwdma_mask = 0x07;
hwif->swdma_mask = 0x07;