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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-08-20 22:42:56 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-08-20 22:42:56 +0200
commit88b47040f8365ad56ecfd4103e964ba9b695987e (patch)
tree861e91d67f275cbeaed2beb34a5d705a40dbdae2
parente98d6e50be87c1ad2df81f73c7442cf631d6f931 (diff)
downloadop-kernel-dev-88b47040f8365ad56ecfd4103e964ba9b695987e.zip
op-kernel-dev-88b47040f8365ad56ecfd4103e964ba9b695987e.tar.gz
triflex: 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 <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
-rw-r--r--drivers/ide/pci/triflex.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/ide/pci/triflex.c b/drivers/ide/pci/triflex.c
index 024bbfa..098692a 100644
--- a/drivers/ide/pci/triflex.c
+++ b/drivers/ide/pci/triflex.c
@@ -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;
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