diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2012-10-25 09:51:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-17 13:18:28 -0800 |
| commit | 9fc9d86a23e2b5eb411c33d3bb8a8ee9a06f34d0 (patch) | |
| tree | 2342657f605c308e85da8a9015e0b5a557ff3f7c /drivers | |
| parent | ec3559970271fe2b28f731dd8bf32c3ef5c0bc02 (diff) | |
rt2800: validate step value for temperature compensation
commit bf7e1abe434ba9e22e8dc04a4cba4ab504b788b8 upstream.
Some hardware has correct (!= 0xff) value of tssi_bounds[4] in the
EEPROM, but step is equal to 0xff. This results on ridiculous delta
calculations and completely broke TX power settings.
Reported-and-tested-by: Pavel Lucik <pavel.lucik@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index b93516d832fb..1345bdd46f38 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2395,7 +2395,7 @@ static int rt2800_get_gain_calibration_delta(struct rt2x00_dev *rt2x00dev) /* * Check if temperature compensation is supported. */ - if (tssi_bounds[4] == 0xff) + if (tssi_bounds[4] == 0xff || step == 0xff) return 0; /* |