diff options
| author | James Bottomley <jejb@parisc-linux.org> | 2005-11-18 23:13:33 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2005-11-18 23:13:33 +0100 |
| commit | 6593178dd46d64a5bcb0402a4f3acd95b0687abd (patch) | |
| tree | 39ffacfb83efc7cbd941dc915ff00e396b371d7b /drivers/ide/ide-lib.c | |
| parent | c37ea218cb43c67bf1578f5e535fcc3a751018ef (diff) | |
| download | lwn-6593178dd46d64a5bcb0402a4f3acd95b0687abd.tar.gz lwn-6593178dd46d64a5bcb0402a4f3acd95b0687abd.zip | |
[PATCH] ide: fix ide_toggle_bounce() to not try to bounce if we have an IOMMU
The following patch fixes a crash caused by attempting to bounce buffer
when an IDE CD-ROM is used on a machine with an IO-MMU. [At least, this
patch fixes things so I can use my IDE CD-ROM behind an ns87415 on a
HP PA-RISC workstation.]
Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-lib.c')
| -rw-r--r-- | drivers/ide/ide-lib.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index b09a6537c7a8..41d46dbe6c24 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -410,10 +410,10 @@ void ide_toggle_bounce(ide_drive_t *drive, int on) { u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */ - if (on && drive->media == ide_disk) { - if (!PCI_DMA_BUS_IS_PHYS) - addr = BLK_BOUNCE_ANY; - else if (HWIF(drive)->pci_dev) + if (!PCI_DMA_BUS_IS_PHYS) { + addr = BLK_BOUNCE_ANY; + } else if (on && drive->media == ide_disk) { + if (HWIF(drive)->pci_dev) addr = HWIF(drive)->pci_dev->dma_mask; } |