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>

1 files changed, 2 insertions, 4 deletions

diff --git a/net/rxrpc/ar-key.c b/net/rxrpc/ar-key.c
index 43ea7de2fc8e..4cba13e46ffd 100644
--- 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;