dns: suppress harmless cppcheck warning

[src/app-layer-dns-common.c:273]: (warning) Assignment of function \
                        parameter has no effect outside the function.

diff --git a/src/app-layer-dns-common.c b/src/app-layer-dns-common.c
index 6e79fc1204c7d7e57cd6e7ac1ab18d11aa3023ba..4266930488e0a38899ecdd2eb4a20a51c2086070 100644 (file)
--- a/src/app-layer-dns-common.c
+++ b/src/app-layer-dns-common.c
@@ -270,7 +270,6 @@ void DNSStateFree(void *s) {
             SCFree(dns_state->buffer);
 
         SCFree(s);
-        s = NULL;
     }
     SCReturn;
 }