From: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Date: Thu, 23 Jun 2016 04:52:01 +0000 (+0530)
Subject: dlm: Use kmemdup instead of kmalloc and memcpy
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5c93f56f770e69c4cf2dbaebecd6bcca205949f9;p=linux-beck.git

dlm: 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>
Signed-off-by: David Teigland <teigland@redhat.com>
---

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 1ab012a27d9f..963016c8f3d1 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1279,10 +1279,9 @@ static void init_local(void)
 		if (dlm_our_addr(&sas, i))
 			break;
 
-		addr = kmalloc(sizeof(*addr), GFP_NOFS);
+		addr = kmemdup(&sas, sizeof(*addr), GFP_NOFS);
 		if (!addr)
 			break;
-		memcpy(addr, &sas, sizeof(*addr));
 		dlm_local_addr[dlm_local_count++] = addr;
 	}
 }