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| author | Mark Lord <liml@rtr.ca> | 2009-03-19 13:32:21 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2009-03-24 22:40:05 -0400 |
| commit | e18086d69cb5bb864749a0637f6ac573aa89d5ea (patch) | |
| tree | 2d3e541787eb30743693dd45c96ebabb9be0f0a6 /drivers/ata/ahci.c | |
| parent | 000b344f4ca7828ee43940255c8bbb32e2c7dbec (diff) | |
| download | kernel-crypto-e18086d69cb5bb864749a0637f6ac573aa89d5ea.tar.gz kernel-crypto-e18086d69cb5bb864749a0637f6ac573aa89d5ea.tar.xz kernel-crypto-e18086d69cb5bb864749a0637f6ac573aa89d5ea.zip | |
[libata] More robust parsing for IDENTIFY DEVICE multi_count field
Make libata more robust when parsing the multi_count
field from a drive's identify data. This prevents us from
attempting to use dubious multi_count values ad infinitum.
Reset dev->multi_count to zero and reprobe it each time
through this routine, as it can change on device reset.
Also ensure that the reported "maximum" value is valid
and is a power of two, and that the reported "count" value
is valid and also a power of two. And that the "count"
value is not greater than the "maximum" value.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/ahci.c')
0 files changed, 0 insertions, 0 deletions