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| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2012-10-25 09:51:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-17 13:15:55 -0800 |
| commit | 75d1ac720f8e92d2334ff7cc4e9a58ddb5213636 (patch) | |
| tree | 4d525dfe81c5338488c88a0799228a20364f3c50 /drivers/net | |
| parent | 7bbaeecbffccbb38fcaf5f7c6af466c16e095d4b (diff) | |
| download | linux-3.10-75d1ac720f8e92d2334ff7cc4e9a58ddb5213636.tar.gz linux-3.10-75d1ac720f8e92d2334ff7cc4e9a58ddb5213636.tar.bz2 linux-3.10-75d1ac720f8e92d2334ff7cc4e9a58ddb5213636.zip | |
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/net')
| -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 6c0a12ea6a1..2ce6bf5b671 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2235,7 +2235,7 @@ 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; /* |