RxRPC: Use kmemdup rather than duplicating its implementation

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

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/rxrpc/ar-key.c b/net/rxrpc/ar-key.c
index 43ea7de..4cba13e 100644 (file)
--- a/net/rxrpc/ar-key.c
+++ b/net/rxrpc/ar-key.c
@@ -306,10 +306,9 @@ static int rxrpc_krb5_decode_tagged_data(struct krb5_tagged_data *td,
        td->data_len = len;
 
        if (len > 0) {
-               td->data = kmalloc(len, GFP_KERNEL);
+               td->data = kmemdup(xdr, len, GFP_KERNEL);
                if (!td->data)
                        return -ENOMEM;
-               memcpy(td->data, xdr, len);
                len = (len + 3) & ~3;
                toklen -= len;
                xdr += len >> 2;
@@ -401,10 +400,9 @@ static int rxrpc_krb5_decode_ticket(u8 **_ticket, u16 *_tktlen,
        _debug("ticket len %u", len);
 
        if (len > 0) {
-               *_ticket = kmalloc(len, GFP_KERNEL);
+               *_ticket = kmemdup(xdr, len, GFP_KERNEL);
                if (!*_ticket)
                        return -ENOMEM;
-               memcpy(*_ticket, xdr, len);
                len = (len + 3) & ~3;
                toklen -= len;
                xdr += len >> 2;