netdev - [PATCH] wcn36xx: Use kmemdup instead of duplicating it in wcn36xx_smd_process_ptt_msg

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Message-ID: <20180724114317.18580-1-yuehaibing@huawei.com>
Date:   Tue, 24 Jul 2018 19:43:17 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <davem@...emloft.net>, <kvalo@...eaurora.org>
CC:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-wireless@...r.kernel.org>, <wcn36xx@...ts.infradead.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH] wcn36xx: Use kmemdup instead of duplicating it in wcn36xx_smd_process_ptt_msg_rsp

Replace calls to kmalloc followed by a memcpy with a direct call to
kmemdup.

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index b4dadf7..70c97ec 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -792,10 +792,10 @@ static int wcn36xx_smd_process_ptt_msg_rsp(void *buf, size_t len,
 			 rsp->header.len - sizeof(rsp->ptt_msg_resp_status));
 
 	if (rsp->header.len > 0) {
-		*p_ptt_rsp_msg = kmalloc(rsp->header.len, GFP_ATOMIC);
+		*p_ptt_rsp_msg = kmemdup(rsp->ptt_msg, rsp->header.len,
+					 GFP_ATOMIC);
 		if (!*p_ptt_rsp_msg)
 			return -ENOMEM;
-		memcpy(*p_ptt_rsp_msg, rsp->ptt_msg, rsp->header.len);
 	}
 	return ret;
 }
-- 
2.7.0