linux-kernel - [PATCH] staging: r8188eu: os_dep: use kmemdup instead of kzalloc and memcpy

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Date:   Fri, 3 Sep 2021 23:26:17 +0530
From:   Saurav Girepunje <saurav.girepunje@...il.com>
To:     Larry.Finger@...inger.net, phil@...lpotter.co.uk,
        gregkh@...uxfoundation.org, straube.linux@...il.com,
        martin@...ser.cx, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Cc:     saurav.girepunje@...mail.com
Subject: [PATCH] staging: r8188eu: os_dep: use kmemdup instead of kzalloc and
 memcpy

Fixes coccicheck warning:WARNING opportunity for kmemdup in ioctl_linux.c

Signed-off-by: Saurav Girepunje <saurav.girepunje@...il.com>
---
 drivers/staging/r8188eu/os_dep/ioctl_linux.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/r8188eu/os_dep/ioctl_linux.c b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
index 81d4255d1785..495fadd2b8c8 100644
--- a/drivers/staging/r8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
@@ -585,14 +585,12 @@ static int rtw_set_wpa_ie(struct adapter *padapter, char *pie, unsigned short ie
 	}

 	if (ielen) {
-		buf = kzalloc(ielen, GFP_KERNEL);
+		buf = kmemdup(pie, ielen, GFP_KERNEL);
 		if (!buf) {
 			ret =  -ENOMEM;
 			goto exit;
 		}

-		memcpy(buf, pie, ielen);
-
 		/* dump */
 		{
 			int i;
--
2.32.0