linux-kernel - [PATCH 3.2 009/104] rtl8192c:dm: Properly initialize local array and set value.

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Message-ID: <lsq.1520823814.760726474@decadent.org.uk>
Date:   Mon, 12 Mar 2018 03:03:34 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Han Shen" <shenhan@...gle.com>,
        Han@...adent.org.uk, "Larry Finger" <Larry.Finger@...inger.net>,
        "John W. Linville" <linville@...driver.com>
Subject: [PATCH 3.2 009/104] rtl8192c:dm: Properly initialize local array
 and set value.

3.2.101-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Han Shen <shenhan@...gle.com>

commit 7c8f0db0d024efda38976fc2acf7743f458e1d96 upstream.

GCC 4.8 is spitting out uninitialized-variable warnings against
"drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c".  This patch adds
initialization to the variable and properly sets its value.

Signed-off-by: Han Shen  (shenhan@...gle.com)
Acked-by: Larry Finger <Larry.Finger@...inger.net>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
@@ -672,7 +672,7 @@ static void rtl92c_dm_txpower_tracking_c
 	u8 thermalvalue, delta, delta_lck, delta_iqk;
 	long ele_a, ele_d, temp_cck, val_x, value32;
 	long val_y, ele_c = 0;
-	u8 ofdm_index[2], ofdm_index_old[2], cck_index_old = 0;
+	u8 ofdm_index[2], ofdm_index_old[2] = {0, 0}, cck_index_old = 0;
 	s8 cck_index = 0;
 	int i;
 	bool is2t = IS_92C_SERIAL(rtlhal->version);
@@ -722,7 +722,7 @@ static void rtl92c_dm_txpower_tracking_c
 			for (i = 0; i < OFDM_TABLE_LENGTH; i++) {
 				if (ele_d == (ofdmswing_table[i] &
 				    MASKOFDM_D)) {
-
+					ofdm_index_old[1] = (u8) i;
 					RT_TRACE(rtlpriv, COMP_POWER_TRACKING,
 					   DBG_LOUD,
 					   ("Initial pathB ele_d reg0x%x = "