diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2012-10-25 09:51:39 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-10-30 20:58:54 +0100 |
| commit | bf7e1abe434ba9e22e8dc04a4cba4ab504b788b8 (patch) | |
| tree | 4d982297534533c44b659dfffcfba147d854b0df /drivers/net/wireless | |
| parent | ath9k: fix stale pointers potentially causing access to free'd skbs (diff) | |
| download | linux-bf7e1abe434ba9e22e8dc04a4cba4ab504b788b8.tar.xz linux-bf7e1abe434ba9e22e8dc04a4cba4ab504b788b8.zip | |
rt2800: validate step value for temperature compensation
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>
Cc: stable@vger.kernel.org
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>
Diffstat (limited to 'drivers/net/wireless')
| -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 01dc8891070c..59474ae0aec0 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2449,7 +2449,7 @@ 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; /* |