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From: Colin King <colin.king@canonical.com>
To: Ping-Ke Shih <pkshih@realtek.com>,
	Kalle Valo <kvalo@codeaurora.org>,
	"David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, Joe Perches <joe@perches.com>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 3/3] rtlwifi: rtl8192de: fix array size limit in for-loop
Date: Tue,  3 Aug 2021 15:49:49 +0100	[thread overview]
Message-ID: <20210803144949.79433-3-colin.king@canonical.com> (raw)
In-Reply-To: <20210803144949.79433-1-colin.king@canonical.com>

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

Currently the size of the entire array is being used in a for-loop
for the element count. While this works since the elements are u8
sized, it is preferred to use ARRAY_SIZE to get the element count
of the array.

Kudos to Joe Perches for spotting this issue.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
index 8ae69d914312..e11728622a9e 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
@@ -1366,7 +1366,7 @@ u8 rtl92d_get_rightchnlplace_for_iqk(u8 chnl)
 	u8 place = chnl;
 
 	if (chnl > 14) {
-		for (place = 14; place < sizeof(channel_all); place++) {
+		for (place = 14; place < ARRAY_SIZE(channel_all); place++) {
 			if (channel_all[place] == chnl)
 				return place - 13;
 		}
-- 
2.31.1


  parent reply	other threads:[~2021-08-03 14:49 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-03 14:49 [PATCH 1/3][RESEND] rtlwifi: rtl8192de: Remove redundant variable initializations Colin King
2021-08-03 14:49 ` [PATCH 2/3][V2] rtlwifi: rtl8192de: make arrays static const, makes object smaller Colin King
2021-08-03 15:09   ` Joe Perches
2021-08-03 15:15     ` Colin Ian King
2021-08-03 15:23       ` Joe Perches
2021-08-03 14:49 ` Colin King [this message]
2021-08-03 18:11   ` [PATCH 3/3] rtlwifi: rtl8192de: fix array size limit in for-loop Joe Perches
2021-08-03 18:12     ` Colin Ian King
2021-08-21 17:31   ` Kalle Valo
2021-08-21 17:33 ` [PATCH 1/3][RESEND] rtlwifi: rtl8192de: Remove redundant variable initializations Kalle Valo

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