linux-kernel - [PATCH] staging: rtl8192e: Use kmemdup rather than duplicating its implementation

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Date:	Tue, 08 Nov 2011 20:37:03 +0100
From:	Thomas Meyer <thomas@...3r.de>
To:	Greg Kroah-Hartman <gregkh@...e.de>,
	Larry Finger <Larry.Finger@...inger.net>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: rtl8192e: Use kmemdup rather than duplicating its
 implementation

From: Thomas Meyer <thomas@...3r.de>

 Use kmemdup rather than duplicating its implementation

 The semantic patch that makes this change is available
 in scripts/coccinelle/api/memdup.cocci.

 More information about semantic patching is available at
 http://coccinelle.lip6.fr/

Signed-off-by: Thomas Meyer <thomas@...3r.de>
---

diff -u -p a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
--- a/drivers/staging/rtl8192e/rtllib_softmac.c 2011-11-07 19:38:11.780313813 +0100
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c 2011-11-08 10:51:51.523576009 +0100
@@ -3207,11 +3207,11 @@ static int rtllib_wpa_set_wpa_ie(struct
 		return -EINVAL;
 
 	if (param->u.wpa_ie.len) {
-		buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL);
+		buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
+			      GFP_KERNEL);
 		if (buf == NULL)
 			return -ENOMEM;
 
-		memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len);
 		kfree(ieee->wpa_ie);
 		ieee->wpa_ie = buf;
 		ieee->wpa_ie_len = param->u.wpa_ie.len;


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