From: Stanislaw Gruszka <sgruszka@redhat.com>
To: "John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org, users@rt2x00.serialmonkey.com,
Pavel Lucik <pavel.lucik@gmail.com>
Subject: [PATCH] rt2800: validate step value for temperature compensation
Date: Thu, 25 Oct 2012 09:51:39 +0200 [thread overview]
Message-ID: <20121025075138.GA2330@redhat.com> (raw)
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>
---
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 3bc206d..c0441a7 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;
/*
--
1.7.1
next reply other threads:[~2012-10-25 7:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-25 7:51 Stanislaw Gruszka [this message]
2012-10-26 8:46 ` [PATCH] rt2800: validate step value for temperature compensation Ivo Van Doorn
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