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staging: vt6656: fix sign of rx_dbm to bb_pre_ed_rssi. 

commit 93134df520 upstream.

bb_pre_ed_rssi is an u8 rx_dm always returns negative signed
values add minus operator to always yield positive.

fixes issue where rx sensitivity is always set to maximum because
the unsigned numbers were always greater then 100.

Fixes: 63b9907f58 ("staging: vt6656: mac80211 conversion: create rx function.")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/aceac98c-6e69-3ce1-dfec-2bf27b980221@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Malcolm Priestley 2020-02-04 19:34:02 +00:00 committed by Greg Kroah-Hartman
parent 41a53f5b68
commit 22ff13ac65
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/vt6656/dpc.c
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@ -130,7 +130,7 @@ int vnt_rx_data(struct vnt_private *priv, struct vnt_rcb *ptr_rcb,
vnt_rf_rssi_to_dbm(priv, *rssi, &rx_dbm);
priv->bb_pre_ed_rssi = (u8)rx_dbm + 1;
priv->bb_pre_ed_rssi = (u8)-rx_dbm + 1;
priv->current_rssi = priv->bb_pre_ed_rssi;
skb_pull(skb, 8);