From: Chen Zhou <chenzhou10@huawei.com>
To: <yisen.zhuang@huawei.com>, <salil.mehta@huawei.com>,
<davem@davemloft.net>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<chenzhou10@huawei.com>
Subject: [PATCH -next] net: hns3: replace snprintf with scnprintf in hns3_dbg_cmd_read
Date: Sun, 19 Jan 2020 20:41:47 +0800 [thread overview]
Message-ID: <20200119124147.30394-1-chenzhou10@huawei.com> (raw)
The return value of snprintf may be greater than the size of
HNS3_DBG_READ_LEN, use scnprintf instead in hns3_dbg_cmd_read.
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index 6b328a2..8fad699 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -297,7 +297,7 @@ static ssize_t hns3_dbg_cmd_read(struct file *filp, char __user *buffer,
if (!buf)
return -ENOMEM;
- len = snprintf(buf, HNS3_DBG_READ_LEN, "%s\n",
+ len = scnprintf(buf, HNS3_DBG_READ_LEN, "%s\n",
"Please echo help to cmd to get help information");
uncopy_bytes = copy_to_user(buffer, buf, len);
--
2.7.4
next reply other threads:[~2020-01-19 12:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-19 12:41 Chen Zhou [this message]
2020-01-20 1:28 ` tanhuazhong
2020-01-20 2:37 ` Chen Zhou
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