linux-kernel - [PATCH] staging: wilc1000: use kmemdup instead of kmalloc and memcpy

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Date:   Tue, 13 Mar 2018 11:50:48 +0530
From:   hariprasath.elango@...il.com
To:     aditya.shankar@...rochip.com
Cc:     hariprasath.elango@...il.com, vbabu3@...teon.com,
        Ganesh Krishna <ganesh.krishna@...rochip.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-wireless@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] staging: wilc1000: use kmemdup instead of kmalloc and memcpy

From: HariPrasath Elango <hariprasath.elango@...il.com>

Kmalloc followed by memcpy can be replaced by kmemdup.

Signed-off-by: HariPrasath Elango <hariprasath.elango@...il.com>
---
 drivers/staging/wilc1000/linux_mon.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/wilc1000/linux_mon.c b/drivers/staging/wilc1000/linux_mon.c
index f93f411..c6fd6b3 100644
--- a/drivers/staging/wilc1000/linux_mon.c
+++ b/drivers/staging/wilc1000/linux_mon.c
@@ -146,7 +146,7 @@ static int mon_mgmt_tx(struct net_device *dev, const u8 *buf, size_t len)
 	if (!mgmt_tx)
 		return -ENOMEM;
 
-	mgmt_tx->buff = kmalloc(len, GFP_ATOMIC);
+	mgmt_tx->buff = kmemdup(buf, len, GFP_ATOMIC);
 	if (!mgmt_tx->buff) {
 		kfree(mgmt_tx);
 		return -ENOMEM;
@@ -154,7 +154,6 @@ static int mon_mgmt_tx(struct net_device *dev, const u8 *buf, size_t len)
 
 	mgmt_tx->size = len;
 
-	memcpy(mgmt_tx->buff, buf, len);
 	wilc_wlan_txq_add_mgmt_pkt(dev, mgmt_tx, mgmt_tx->buff, mgmt_tx->size,
 				   mgmt_tx_complete);
 
-- 
2.10.0.GIT