X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvppinfra%2Fpool.h;h=747a7170800c785a29c61fad48d51cdd3585f81a;hb=f9240dc9207b677038183ca29888d4be89bb88d5;hp=10262e90ec796df61d7cfe28e84d5cfd58e8d85a;hpb=d75320988853736b3d497ccb3f054bc8cc27b207;p=vpp.git

diff --git a/src/vppinfra/pool.h b/src/vppinfra/pool.h
index 10262e90ec7..747a7170800 100644
--- a/src/vppinfra/pool.h
+++ b/src/vppinfra/pool.h
@@ -352,18 +352,21 @@ do {									\
   typeof (P) _pool_var (new) = 0;					\
   pool_header_t * _pool_var (ph), * _pool_var (new_ph);			\
   u32 _pool_var (n) = pool_len (P);					\
-  _pool_var (new) = _vec_resize (_pool_var (new), _pool_var (n),	\
-				 _pool_var (n) * sizeof ((P)[0]), 	\
-				 pool_aligned_header_bytes, (A));	\
-  clib_memcpy_fast (_pool_var (new), (P), 				\
-		    _pool_var (n) * sizeof ((P)[0]));			\
-  _pool_var (ph) = pool_header (P);					\
-  _pool_var (new_ph) = pool_header (_pool_var (new));			\
-  _pool_var (new_ph)->free_bitmap = 					\
-    clib_bitmap_dup (_pool_var (ph)->free_bitmap);			\
-  _pool_var (new_ph)->free_indices = 					\
-    vec_dup (_pool_var (ph)->free_indices);				\
-  _pool_var (new_ph)->max_elts = _pool_var (ph)->max_elts;		\
+  if ((P))								\
+    {									\
+      _pool_var (new) = _vec_resize (_pool_var (new), _pool_var (n),	\
+                                     _pool_var (n) * sizeof ((P)[0]), 	\
+                                     pool_aligned_header_bytes, (A));	\
+      clib_memcpy_fast (_pool_var (new), (P), 				\
+                        _pool_var (n) * sizeof ((P)[0]));		\
+      _pool_var (ph) = pool_header (P);					\
+      _pool_var (new_ph) = pool_header (_pool_var (new));		\
+      _pool_var (new_ph)->free_bitmap = 				\
+        clib_bitmap_dup (_pool_var (ph)->free_bitmap);			\
+      _pool_var (new_ph)->free_indices = 				\
+        vec_dup (_pool_var (ph)->free_indices);				\
+      _pool_var (new_ph)->max_elts = _pool_var (ph)->max_elts;		\
+    }									\
   _pool_var (new);							\
 })