af-packet: clean up decode thread local storage

Clean up the thread local data of the decode part of afpacket.

Bug #978

src/source-af-packet.c

@@ -246,6 +246,7 @@ TmEcode ReceiveAFPThreadDeinit(ThreadVars *, void *);
 TmEcode ReceiveAFPLoop(ThreadVars *tv, void *data, void *slot);
 
 TmEcode DecodeAFPThreadInit(ThreadVars *, void *, void **);
+TmEcode DecodeAFPThreadDeinit(ThreadVars *tv, void *data);
 TmEcode DecodeAFP(ThreadVars *, Packet *, void *, PacketQueue *, PacketQueue *);
 
 TmEcode AFPSetBPFFilter(AFPThreadVars *ptv);
@@ -483,7 +484,7 @@ void TmModuleDecodeAFPRegister (void) {
     tmm_modules[TMM_DECODEAFP].ThreadInit = DecodeAFPThreadInit;
     tmm_modules[TMM_DECODEAFP].Func = DecodeAFP;
     tmm_modules[TMM_DECODEAFP].ThreadExitPrintStats = NULL;
-    tmm_modules[TMM_DECODEAFP].ThreadDeinit = NULL;
+    tmm_modules[TMM_DECODEAFP].ThreadDeinit = DecodeAFPThreadDeinit;
     tmm_modules[TMM_DECODEAFP].RegisterTests = NULL;
     tmm_modules[TMM_DECODEAFP].cap_flags = 0;
     tmm_modules[TMM_DECODEAFP].flags = TM_FLAG_DECODE_TM;
@@ -1894,6 +1895,13 @@ TmEcode DecodeAFPThreadInit(ThreadVars *tv, void *initdata, void **data)
     SCReturnInt(TM_ECODE_OK);
 }
 
+TmEcode DecodeAFPThreadDeinit(ThreadVars *tv, void *data)
+{
+    if (data != NULL)
+        DecodeThreadVarsFree(data);
+    SCReturnInt(TM_ECODE_OK);
+}
+
 #endif /* HAVE_AF_PACKET */
 /* eof */
 /**