rtlwifi: rtl8192cu: Fix more pointer arithmetic errors

commit eafbdde9c5629bea58df07275c5917eb42afbbe7 upstream.

This driver uses a number of macros to get and set various fields in the
RX and TX descriptors. To work correctly, a u8 pointer to the descriptor
must be used; however, in some cases a descriptor structure pointer is used
instead. In addition, a duplicated statement is removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
index 060a06f..5515215 100644 (file)
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
@@ -782,7 +782,7 @@ static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw,
 
 static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
                                      struct rtl_stats *pstats,
-                                     struct rx_desc_92c *pdesc,
+                                     struct rx_desc_92c *p_desc,
                                      struct rx_fwinfo_92c *p_drvinfo,
                                      bool packet_match_bssid,
                                      bool packet_toself,
@@ -797,11 +797,11 @@ static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
        u32 rssi, total_rssi = 0;
        bool in_powersavemode = false;
        bool is_cck_rate;
+       u8 *pdesc = (u8 *)p_desc;
 
-       is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
+       is_cck_rate = RX_HAL_IS_CCK_RATE(p_desc);
        pstats->packet_matchbssid = packet_match_bssid;
        pstats->packet_toself = packet_toself;
-       pstats->is_cck = is_cck_rate;
        pstats->packet_beacon = packet_beacon;
        pstats->is_cck = is_cck_rate;
        pstats->RX_SIGQ[0] = -1;

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
index e154f7d..a6ea2d9 100644 (file)
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
@@ -303,10 +303,10 @@ out:
 bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
                           struct rtl_stats *stats,
                           struct ieee80211_rx_status *rx_status,
-                          u8 *p_desc, struct sk_buff *skb)
+                          u8 *pdesc, struct sk_buff *skb)
 {
        struct rx_fwinfo_92c *p_drvinfo;
-       struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
+       struct rx_desc_92c *p_desc = (struct rx_desc_92c *)pdesc;
        u32 phystatus = GET_RX_DESC_PHY_STATUS(pdesc);
 
        stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
@@ -345,7 +345,7 @@ bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
        if (phystatus) {
                p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
                                                     stats->rx_bufshift);
-               rtl92c_translate_rx_signal_stuff(hw, skb, stats, pdesc,
+               rtl92c_translate_rx_signal_stuff(hw, skb, stats, p_desc,
                                                 p_drvinfo);
        }
        /*rx_status->qual = stats->signal; */