linux-kernel - [PATCH][next] rtw88: remove redundant null pointer check on arrays

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Date:   Fri, 25 Oct 2019 12:30:56 +0100
From:   Colin King <colin.king@...onical.com>
To:     Yan-Hsuan Chuang <yhchuang@...ltek.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        "David S . Miller" <davem@...emloft.net>,
        Chris Chiu <chiu@...lessm.com>,
        Tzu-En Huang <tehuang@...ltek.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] rtw88: remove redundant null pointer check on arrays

From: Colin Ian King <colin.king@...onical.com>

The checks to see if swing_table->n or swing_table->p are null are
redundant since n and p are arrays and can never be null if
swing_table is non-null.  I believe these are redundant checks
and can be safely removed, especially the checks implies that these
are not arrays which can lead to confusion.

Addresses-Coverity: ("Array compared against 0")
Fixes: c97ee3e0bea2 ("rtw88: add power tracking support")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/net/wireless/realtek/rtw88/phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw88/phy.c b/drivers/net/wireless/realtek/rtw88/phy.c
index 69e7edb629f4..11893ec73376 100644
--- a/drivers/net/wireless/realtek/rtw88/phy.c
+++ b/drivers/net/wireless/realtek/rtw88/phy.c
@@ -2071,7 +2071,7 @@ s8 rtw_phy_pwrtrack_get_pwridx(struct rtw_dev *rtwdev,
 		return 0;
 	}
 
-	if (!swing_table || !swing_table->n || !swing_table->p) {
+	if (!swing_table) {
 		rtw_warn(rtwdev, "swing table not configured\n");
 		return 0;
 	}
-- 
2.20.1