af_packet: Quiet sparse noise about using plain integer as NULL pointer

Quiets the sparse warning:
warning: Using plain integer as NULL pointer

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index ceaca7c134a0..f016f6634a79 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1079,7 +1079,7 @@ static void *packet_current_rx_frame(struct packet_sock *po,
         default:
                 WARN(1, "TPACKET version not supported\n");
                 BUG();
-                return 0;
+                return NULL;
         }
 }