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 272d20a..215849c 100644 (file)
--- 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;