ipv6: fix sparse warning: Using plain integer as NULL pointer

Fix this sparse warning:
  net/ipv6/xfrm6_state.c:72:26: warning: Using plain integer as NULL pointer

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index 0e685b05496e..f417b77fa0e1 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -69,7 +69,7 @@ __xfrm6_sort(void **dst, void **src, int n, int (*cmp)(void *p), int maxclass)
 
         for (i = 0; i < n; i++) {
                 dst[count[class[i] - 1]++] = src[i];
-                src[i] = 0;
+                src[i] = NULL;
         }
 
         return 0;