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| author | Alexey Dobriyan <adobriyan@gmail.com> | 2008-05-22 18:00:25 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-05-30 22:07:25 -0400 |
| commit | aefdbf1a3b832a580a50cf3d1dcbb717be7cbdbe (patch) | |
| tree | 8424a76c31a2d03204f58e2b155564ff8fbee953 /drivers/serial/ip22zilog.h | |
| parent | 08722bc4a066705e3f5fb4a5a87ce717fe9f896e (diff) | |
atl1: fix 4G memory corruption bug
When using 4+ GB RAM and SWIOTLB is active, the driver corrupts
memory by writing an skb after the relevant DMA page has been
unmapped. Although this doesn't happen when *not* using bounce
buffers, clearing the pointer to the DMA page after unmapping
it fixes the problem.
http://marc.info/?t=120861317000005&r=2&w=2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/serial/ip22zilog.h')
0 files changed, 0 insertions, 0 deletions