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rtlwifi: rtl8192cu: Fix error in pointer arithmetic

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commit 9473ca6e92 upstream.

An error in calculating the offset in an skb causes the driver to read
essential device info from the wrong locations. The main effect is that
automatic gain calculations are nonsense.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mark Cave-Ayland
2013-10-08 10:18:20 -05:00
committed by Greg Kroah-Hartman
parent 6f2c0ed783
commit 3af669ca99
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
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@@ -343,7 +343,8 @@ bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
(bool)GET_RX_DESC_PAGGR(pdesc));
rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
if (phystatus) {
p_drvinfo = (struct rx_fwinfo_92c *)(pdesc + RTL_RX_DESC_SIZE);
p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
stats->rx_bufshift);
rtl92c_translate_rx_signal_stuff(hw, skb, stats, pdesc,
p_drvinfo);
}