From: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Date: Thu, 23 Jun 2016 04:49:37 +0000 (+0530)
Subject: tipc: Use kmemdup instead of kmalloc and memcpy
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=810bf11033637a2069952afb9c37f3afd3bbfe41;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

tipc: Use kmemdup instead of kmalloc and memcpy

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

The Coccinelle semantic patch used to make this change is as follows:
@@
expression from,to,size,flag;
statement S;
@@

-  to = \(kmalloc\|kzalloc\)(size,flag);
+  to = kmemdup(from,size,flag);
   if (to==NULL || ...) S
-  memcpy(to, from, size);

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/tipc/server.c b/net/tipc/server.c
index 272d20a795d5..215849ce453d 100644
--- a/net/tipc/server.c
+++ b/net/tipc/server.c
@@ -418,13 +418,12 @@ static struct outqueue_entry *tipc_alloc_entry(void *data, int len)
 	if (!entry)
 		return NULL;
 
-	buf = kmalloc(len, GFP_ATOMIC);
+	buf = kmemdup(data, len, GFP_ATOMIC);
 	if (!buf) {
 		kfree(entry);
 		return NULL;
 	}
 
-	memcpy(buf, data, len);
 	entry->iov.iov_base = buf;
 	entry->iov.iov_len = len;