fellow_log: finish dskpool_mem at the right place

src/fellow_log.c

@@ -2231,12 +2231,17 @@ logbuffer_take(struct fellow_logbuffer *to, struct logblk_mempool *to_mempool,
     struct fellow_logbuffer *from)
 {
 	logbuffer_wait_flush_fini(from);
+	/* we take the dskpool to the new logbuffer, if any,
+	 * but the dskpool_mem request belongs to the old
+	 * logbuffer
+	 */
+	logbuffer_fini_dskpool_mem(from);
+
 	*to = *from;
 	to->mempool = to_mempool;
 	BUDDY_POOL_INIT(to->ffpool, from->membuddy, FEP_MEM_LOG,
 	    logbuffer_fill_ffpool, to);
 
-	logbuffer_fini_dskpool_mem(from);
 	BUDDY_POOL_FINI(from->ffpool);
 
 	memset(from, 0, sizeof *from);