netdev - [PATCH 4/8 V2] rtlwifi: rtl8192_common: Fix smatch errors and warnings in rtl8192c/dm

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Message-Id: <1379357722-17687-5-git-send-email-Larry.Finger@lwfinger.net>
Date:	Mon, 16 Sep 2013 13:55:18 -0500
From:	Larry Finger <Larry.Finger@...inger.net>
To:	linville@...driver.com
Cc:	linux-wireless@...r.kernel.org,
	Larry Finger <Larry.Finger@...inger.net>,
	netdev@...r.kernel.org
Subject: [PATCH 4/8 V2] rtlwifi: rtl8192_common: Fix smatch errors and warnings in rtl8192c/dm_common.c

Smatch lists the following:
  CHECK   drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:551 rtl92c_dm_pwdb_monitor() info: ignoring unreachable code.
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:551 rtl92c_dm_pwdb_monitor() info: ignoring unreachable code.
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:870 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:870 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:882 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:883 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:891 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:892 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2

The unreachable code message is fixed by commenting out the code that follows a return.
The code is not deleted in case it is needed later.

The errors are fixed by increasing the size of txpwr_level.

Signed-off-by: Larry Finger <Larry.Finger@...inger.net>
---
 drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
index d2d57a2..0721756 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
@@ -541,6 +541,7 @@ EXPORT_SYMBOL(rtl92c_dm_write_dig);

 static void rtl92c_dm_pwdb_monitor(struct ieee80211_hw *hw)
 {
+/*
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	long tmpentry_max_pwdb = 0, tmpentry_min_pwdb = 0xff;

@@ -564,6 +565,7 @@ static void rtl92c_dm_pwdb_monitor(struct ieee80211_hw *hw)
 	h2c_parameter[0] = 0;

 	rtl92c_fill_h2c_cmd(hw, H2C_RSSI_REPORT, 3, h2c_parameter);
+ */
 }

 void rtl92c_dm_init_edca_turbo(struct ieee80211_hw *hw)
@@ -673,7 +675,7 @@ static void rtl92c_dm_txpower_tracking_callback_thermalmeter(struct ieee80211_hw
 	s8 cck_index = 0;
 	int i;
 	bool is2t = IS_92C_SERIAL(rtlhal->version);
-	s8 txpwr_level[2] = {0, 0};
+	s8 txpwr_level[3] = {0, 0, 0};
 	u8 ofdm_min_index = 6, rf;

 	rtlpriv->dm.txpower_trackinginit = true;
-- 
1.8.1.4

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