diff options
| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-12-20 19:22:33 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-01-06 14:26:29 -0800 |
| commit | 7564ecada882a2ec698bddcfb85a48e4b0e2b2a5 (patch) | |
| tree | fbe865262c6e3201b4dec73df9ff9393db075121 /drivers/usb | |
| parent | 73b52c3b88805ec5528c647fcb71eab3443e47cb (diff) | |
pata_cmd64x: fix overclocking of UDMA0-2 modes
commit 509426bd46ad0903dca409803e0ee3d30f99f1e8 upstream.
adev->dma_mode stores the transfer mode value not UDMA mode number
so the condition in cmd64x_set_dmamode() is always true and the higher
UDMA clock is always selected. This can potentially result in data
corruption when UDMA33 device is used, when 40-wire cable is used or
when the error recovery code decides to lower the device speed down.
The issue was introduced in the commit 6a40da0 ("libata cmd64x: whack
into a shape that looks like the documentation") which goes back to
kernel 2.6.20.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
0 files changed, 0 insertions, 0 deletions