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p54: clamp properly instead of just truncating

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commit 608cfbe4abaf76e9d732efd7ed1cfa3998163d91 upstream.

The call to clamp_t() first truncates the variable signed 8 bit and as a
result, the actual clamp is a no-op.

Fixes: 0d78156eef1d ('p54: improve site survey')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter 2014-01-13 22:05:23 +03:00 committed by Greg Kroah-Hartman
parent 32d9ea8058
commit b2b74ba864
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/p54/txrx.c
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@ -587,7 +587,7 @@ static void p54_rx_stats(struct p54_common *priv, struct sk_buff *skb)
chan = priv->curchan;
if (chan) {
struct survey_info *survey = &priv->survey[chan->hw_value];
survey->noise = clamp_t(s8, priv->noise, -128, 127);
survey->noise = clamp(priv->noise, -128, 127);
survey->channel_time = priv->survey_raw.active;
survey->channel_time_tx = priv->survey_raw.tx;
survey->channel_time_busy = priv->survey_raw.tx +