Fix an initialization problem that valgrind complained about - forgot to mirror the fix that was done for the replica.

This commit was SVN r3646.

src/mca/gpr/proxy/gpr_proxy_component.c

@@ -178,6 +178,7 @@ mca_gpr_base_module_t* mca_gpr_proxy_init(bool *allow_multi_user_threads, bool *
 	/* initialize the registry compound mode */
 	mca_gpr_proxy_compound_cmd_mode = false;
 	mca_gpr_proxy_compound_cmd_waiting = 0;
+	mca_gpr_proxy_compound_cmd = NULL;
 
 	/* define the replica for us to use - get it from process_info */
 	mca_gpr_my_replica = ompi_name_server.copy_process_name(ompi_process_info.gpr_replica);

src/mca/gpr/proxy/gpr_proxy_compound_cmd.c

@@ -29,10 +29,13 @@ int mca_gpr_proxy_begin_compound_cmd(void)
     }
 
     mca_gpr_proxy_compound_cmd_mode = true;
+    if (NULL != mca_gpr_proxy_compound_cmd) {  /* first time through, pointer is NULL, so just perform init */
         ompi_buffer_size(mca_gpr_proxy_compound_cmd, &size);
         if (0 < size) {
 	    ompi_buffer_free(mca_gpr_proxy_compound_cmd);
         }
+    }
+
     ompi_buffer_init(&mca_gpr_proxy_compound_cmd, 0);
 
     OMPI_THREAD_UNLOCK(&mca_gpr_proxy_wait_for_compound_mutex);
@@ -47,10 +50,12 @@ int mca_gpr_proxy_stop_compound_cmd(void)
     OMPI_THREAD_LOCK(&mca_gpr_proxy_wait_for_compound_mutex);
 
     mca_gpr_proxy_compound_cmd_mode = false;
+    if (NULL != mca_gpr_proxy_compound_cmd) {
 	ompi_buffer_size(mca_gpr_proxy_compound_cmd, &size);
 	if (0 < size) {
 	    ompi_buffer_free(mca_gpr_proxy_compound_cmd);
 	}
+    }
 
     if (mca_gpr_proxy_compound_cmd_waiting) {
 	ompi_condition_signal(&mca_gpr_proxy_compound_cmd_condition);
@@ -101,10 +106,13 @@ ompi_list_t* mca_gpr_proxy_exec_compound_cmd(bool return_requested)
 
  CLEANUP:
     mca_gpr_proxy_compound_cmd_mode = false;
+    if (NULL != mca_gpr_proxy_compound_cmd) {  /* shouldn't be any way this could be true, but just to be safe... */
 	ompi_buffer_size(mca_gpr_proxy_compound_cmd, &size);
 	if (0 < size) {
 	    ompi_buffer_free(mca_gpr_proxy_compound_cmd);
 	}
+    }
+
     if (mca_gpr_proxy_compound_cmd_waiting) {
 	ompi_condition_signal(&mca_gpr_proxy_compound_cmd_condition);
     }