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From:   Wei Yongjun <weiyongjun1@huawei.com>
To:     Yan-Hsuan Chuang <yhchuang@realtek.com>,
        Kalle Valo <kvalo@codeaurora.org>
CC:     Wei Yongjun <weiyongjun1@huawei.com>,
        <linux-wireless@vger.kernel.org>, <kernel-janitors@vger.kernel.org>
Subject: [PATCH] rtw88: fix seq_file memory leak
Date:   Wed, 4 Sep 2019 14:16:01 +0000
Message-ID: <20190904141601.186107-1-weiyongjun1@huawei.com>
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Sender: linux-wireless-owner@vger.kernel.org
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When using single_open(), single_release() should be used instead
of seq_release(), otherwise there is a memory leak.

This is detected by Coccinelle semantic patch.

Fixes: e3037485c68e ("rtw88: new Realtek 802.11ac driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/net/wireless/realtek/rtw88/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw88/debug.c b/drivers/net/wireless/realtek/rtw88/debug.c
index f0ae26018f97..a7d45f4d34c4 100644
--- a/drivers/net/wireless/realtek/rtw88/debug.c
+++ b/drivers/net/wireless/realtek/rtw88/debug.c
@@ -76,7 +76,7 @@ static const struct file_operations file_ops_single_r = {
 	.open = rtw_debugfs_single_open_rw,
 	.read = seq_read,
 	.llseek = seq_lseek,
-	.release = seq_release,
+	.release = single_release,
 };
 
 static const struct file_operations file_ops_single_rw = {